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github-actions[bot] 34a01255e1 chore: version packages (#2524) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-supervisor@1.1.0

### Minor Changes

- [#2521](https://github.com/langchain-ai/langgraphjs/pull/2521)
[`56682a6`](https://github.com/langchain-ai/langgraphjs/commit/56682a69a24d0dfb210f1fb5187c51e3adc356bf)
Thanks [@open-swe](https://github.com/apps/open-swe)! -
feat(langgraph-supervisor): Add `addHandoffMessages` to
`createSupervisor` and `createHandoffTool`, allowing supervisor-to-agent
handoff bookkeeping messages to be omitted from the expert agent's
message history. When `addHandoffBackMessages` is not provided, it now
defaults to the same value as `addHandoffMessages`, matching the Python
package behavior.

`createHandoffTool` now also accepts `description` as the preferred
option name while continuing to support the existing `agentDescription`
option as deprecated for backwards compatibility.

### Patch Changes

- [#2407](https://github.com/langchain-ai/langgraphjs/pull/2407)
[`59d4765`](https://github.com/langchain-ai/langgraphjs/commit/59d4765870bc0cddf3ef594b128ab3280533cb6c)
Thanks [@pragnyanramtha](https://github.com/pragnyanramtha)! - Normalize
all whitespace in supervisor handoff tool names.

## @langchain/langgraph@1.4.1

### Patch Changes

- [#2520](https://github.com/langchain-ai/langgraphjs/pull/2520)
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(state): validate Zod state updates from nodes

Validate node return values and Command updates against Zod state schema
    constraints before applying them to graph state.

Fixes [#2519](https://github.com/langchain-ai/langgraphjs/issues/2519)

- [#2511](https://github.com/langchain-ai/langgraphjs/pull/2511)
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(ToolNode): forward graph state to tools via `runtime.state`

`ToolNode` now forwards its input to each tool through the second
argument as `runtime.state`. When using `ToolNode` as a node in a
LangGraph graph, this gives tools access to the current graph state for
workflows that need tool-call support in LangGraph proper. Tools can
type the second parameter as `ToolRuntime<StateType>` from
`@langchain/core/tools` and read `runtime.state` directly. This works in
every runtime, including web browsers, and removes the need for
`getCurrentTaskInput()` (which relies on
`node:async_hooks`/`AsyncLocalStorage`). `getCurrentTaskInput(config)`
continues to work for backwards compatibility.

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21

## @langchain/langgraph-sdk@1.9.21

### Patch Changes

- [#2522](https://github.com/langchain-ai/langgraphjs/pull/2522)
[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(stream): add per-event side-effect selector

Add `useChannelEffect` (React/Svelte/Vue) / `injectChannelEffect`
(Angular), a side-effect counterpart to `useChannel` that invokes an
`onEvent` callback once per raw protocol event without re-rendering.
This is the idiomatic v1 replacement for the old `onLangChainEvent` /
`onCustomEvent` callbacks for analytics and logging. Backed by a new
framework-agnostic `acquireChannelEffect` helper in
`@langchain/langgraph-sdk/stream` that shares a ref-counted subscription
with matching `useChannel` consumers.

- [#2523](https://github.com/langchain-ai/langgraphjs/pull/2523)
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): stop re-streaming seeded messages on idle-thread submit

An idle (finished) thread defers its root SSE pump, so the first
`submit()` brings it up and the transport replays the finished run from
`seq=0`. The replayed `messages` channel carries no step (unlike
`values`, guarded by `maxStep`), so it rebuilt each already-complete
message from an empty `message-start` and re-streamed the whole turn
token-by-token — a visible "messages replay" of the existing
conversation. Seal the message ids seeded from the idle `getState()`
snapshot so replayed deltas can't downgrade the complete tail; the seal
lifts once a newer checkpoint advances the timeline or on thread rebind,
and ids from the next run are never sealed.

- [#2462](https://github.com/langchain-ai/langgraphjs/pull/2462)
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconnect v2 SSE and WebSocket thread streams after disconnect

Add automatic reconnect with resume (`since` for SSE) for protocol
transports,
wire `AsyncCaller` through `client.threads.stream`, and expose optional
reconnect tuning on `ThreadStreamOptions`. Includes integration tests
against
    an in-process mock langgraph-api server.

## @langchain/angular@1.0.22

### Patch Changes

- [#2522](https://github.com/langchain-ai/langgraphjs/pull/2522)
[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(stream): add per-event side-effect selector

Add `useChannelEffect` (React/Svelte/Vue) / `injectChannelEffect`
(Angular), a side-effect counterpart to `useChannel` that invokes an
`onEvent` callback once per raw protocol event without re-rendering.
This is the idiomatic v1 replacement for the old `onLangChainEvent` /
`onCustomEvent` callbacks for analytics and logging. Backed by a new
framework-agnostic `acquireChannelEffect` helper in
`@langchain/langgraph-sdk/stream` that shares a ref-counted subscription
with matching `useChannel` consumers.

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21

## @langchain/react@1.0.22

### Patch Changes

- [#2522](https://github.com/langchain-ai/langgraphjs/pull/2522)
[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(stream): add per-event side-effect selector

Add `useChannelEffect` (React/Svelte/Vue) / `injectChannelEffect`
(Angular), a side-effect counterpart to `useChannel` that invokes an
`onEvent` callback once per raw protocol event without re-rendering.
This is the idiomatic v1 replacement for the old `onLangChainEvent` /
`onCustomEvent` callbacks for analytics and logging. Backed by a new
framework-agnostic `acquireChannelEffect` helper in
`@langchain/langgraph-sdk/stream` that shares a ref-counted subscription
with matching `useChannel` consumers.

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21

## @langchain/svelte@1.0.22

### Patch Changes

- [#2522](https://github.com/langchain-ai/langgraphjs/pull/2522)
[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(stream): add per-event side-effect selector

Add `useChannelEffect` (React/Svelte/Vue) / `injectChannelEffect`
(Angular), a side-effect counterpart to `useChannel` that invokes an
`onEvent` callback once per raw protocol event without re-rendering.
This is the idiomatic v1 replacement for the old `onLangChainEvent` /
`onCustomEvent` callbacks for analytics and logging. Backed by a new
framework-agnostic `acquireChannelEffect` helper in
`@langchain/langgraph-sdk/stream` that shares a ref-counted subscription
with matching `useChannel` consumers.

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21

## @langchain/vue@1.0.22

### Patch Changes

- [#2522](https://github.com/langchain-ai/langgraphjs/pull/2522)
[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(stream): add per-event side-effect selector

Add `useChannelEffect` (React/Svelte/Vue) / `injectChannelEffect`
(Angular), a side-effect counterpart to `useChannel` that invokes an
`onEvent` callback once per raw protocol event without re-rendering.
This is the idiomatic v1 replacement for the old `onLangChainEvent` /
`onCustomEvent` callbacks for analytics and logging. Backed by a new
framework-agnostic `acquireChannelEffect` helper in
`@langchain/langgraph-sdk/stream` that shares a ref-counted subscription
with matching `useChannel` consumers.

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21

## @example/ai-elements@0.1.37

### Patch Changes

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3)]:
    -   @langchain/react@1.0.22
    -   @langchain/langgraph@1.4.1

## @examples/assistant-ui-claude@0.1.37

### Patch Changes

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3)]:
    -   @langchain/react@1.0.22
    -   @langchain/langgraph@1.4.1

## @examples/ui-angular@0.0.47

### Patch Changes

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21
    -   @langchain/angular@1.0.22
    -   @langchain/langgraph@1.4.1

## @examples/ui-multimodal@0.0.23

### Patch Changes

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3)]:
    -   @langchain/react@1.0.22
    -   @langchain/langgraph@1.4.1

## @examples/ui-react@0.0.23

### Patch Changes

- Updated dependencies
\[[`3855985`](https://github.com/langchain-ai/langgraphjs/commit/3855985dd049739f145295d236ce6aa02ae2fb0e),
[`7c3e9e9`](https://github.com/langchain-ai/langgraphjs/commit/7c3e9e93f3c7ec1dc654dac8ee8c03562ee8337b),
[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3),
[`17c44a3`](https://github.com/langchain-ai/langgraphjs/commit/17c44a38b7478e2bc4fe908a54c78ef33fb68ba3)]:
    -   @langchain/langgraph-sdk@1.9.21
    -   @langchain/react@1.0.22
    -   @langchain/langgraph@1.4.1

## langgraph@1.0.41

### Patch Changes

- Updated dependencies
\[[`2da5c33`](https://github.com/langchain-ai/langgraphjs/commit/2da5c3374f7b91ba0afa607c507e2ff1591baca7),
[`ef04db3`](https://github.com/langchain-ai/langgraphjs/commit/ef04db316d680ab32b812c88cadda75638294dd3)]:
    -   @langchain/langgraph@1.4.1

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.22 @langchain/langgraph-sdk@1.9.21 @langchain/langgraph-supervisor@1.1.0 @langchain/langgraph@1.4.1 @langchain/react@1.0.22 @langchain/svelte@1.0.22 @langchain/vue@1.0.22 		2026-06-10 17:09:31 -07:00
open-swe[bot] febba20e49 fix(internal): update changelog 2026-06-10 17:06:23 -07:00
Christian Bromann 17c44a38b7 fix(sdk): reconnect v2 SSE and WebSocket thread streams after disconnect (#2462) 
## Summary
- Add automatic reconnect for v2 `ProtocolSseTransportAdapter` and
`ProtocolWebSocketTransportAdapter` (resume via `since` on SSE, full
buffer replay on WebSocket, with `MaxWebSocketReconnectAttemptsError`
when the budget is exceeded).
- Wire `AsyncCaller` and reconnect defaults through
`client.threads.stream`, with optional `maxReconnectAttempts`,
`reconnectDelayMs`, and `onReconnect` on `ThreadStreamOptions`.
- Disable auto-reconnect when a custom `fetch` is passed (test/mocks),
and add `pnpm test:int` integration tests using `client.threads.stream`
+ `run.start` against an in-process mock server.

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-06-10 17:05:35 -07:00
Pragnyan Ramtha 59d4765870 fix(langgraph-supervisor): normalize handoff tool whitespace (#2407) 
## Summary

- normalize all whitespace runs in supervisor handoff agent names
- prevent generated handoff tool names from retaining spaces after the
first normalized segment
- add focused coverage for a multi-word agent name and a patch changeset
for `@langchain/langgraph-supervisor`

## Validation

- `git diff --check` -> passed
- `pnpm --dir libs/langgraph-supervisor exec vitest run
src/tests/supervisor.test.ts` -> 5 passed
- `pnpm --filter @langchain/langgraph-supervisor build:internal` ->
passed, including `attw` and `publint`

## Notes

The sibling `langgraph-swarm` handoff helper already uses global
whitespace replacement; this aligns supervisor handoff naming with that
behavior.

Co-authored-by: Christian Bromann <git@bromann.dev>
 2026-06-10 16:27:18 -07:00
Christian Bromann 2da5c3374f fix(langgraph): validate Zod state updates from nodes (#2520) 
## Summary
- Validates StateGraph node return values and Command updates against
Zod state schema constraints before applying writes.
- Preserves Overwrite behavior by validating reducer overwrites against
stored value schemas.
- Adds regression coverage for invalid Zod node returns and Command
updates.

Fixes #2519

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
 2026-06-10 15:56:53 -07:00
Christian Bromann 7c3e9e93f3 fix(sdk): stop re-streaming seeded messages on idle-thread submit (#2523) 
## Summary
- Fixes a visible "messages replay" where opening a finished thread and
submitting re-streamed every existing message token-by-token.
- Root cause: an idle thread defers its root SSE pump, so the first
`submit()` replays the finished run from `seq=0`. The `messages` channel
carries no step (unlike `values`, guarded by `#maxStep`), so it rebuilt
each already-complete message from an empty `message-start`, clobbering
the tail seeded from `getState()`.
- Adds a message-id seal in `RootMessageProjection`: ids seeded from an
idle thread's `getState()` snapshot drop replayed `messages` deltas in
`handleMessage()`. The seal is cleared on thread rebind (`reset()`) and
lifts in `applyValues()` once a strictly-newer checkpoint `step`
advances the timeline past the seed. `controller.hydrate()` only seals
for idle threads (`!threadActive`) — active threads keep streaming their
live tail, and ids from the next run are never sealed.

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
 2026-06-10 15:31:26 -07:00
Christian Bromann 3855985dd0 fix(sdk): add per-event channel effect selector (#2522) 
## Summary
- Add a side-effect counterpart to `useChannel`: `useChannelEffect`
(React, Svelte, Vue) and `injectChannelEffect` (Angular). It invokes an
`onEvent` callback once per raw protocol event and returns nothing, so
it never re-renders — the idiomatic v1 replacement for the removed
`onLangChainEvent` / `onCustomEvent` callbacks used for
analytics/logging.
- Back all four bindings with a new framework-agnostic
`acquireChannelEffect(registry, channels, namespace, options)` helper in
`@langchain/langgraph-sdk/stream`. It acquires the same ref-counted
`channelProjection` as `useChannel` (so an effect consumer and a
matching `useChannel` share one server subscription and survive thread
swaps), diffs the shared store by event identity, skips events buffered
before it attaches (no double-counting history on a late mount), and
resets correctly across thread rebinds.
- API matches the agreed shape with `target`, `enabled`, `replay`
(defaults to `false`/live-only — opposite of `useChannel`),
`bufferSize`, `onEvent`, and `onError`. Callbacks are read from a
ref/lazy wrapper so fresh inline closures never re-subscribe.
- Update selector docs and `v1-migration.md` in all four SDKs, noting
the callback now receives v1 protocol events (`lifecycle.*`, `tools.*`,
`messages.*`, `custom`) rather than legacy LangChain event names.

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
 2026-06-10 15:19:27 -07:00
open-swe[bot] 56682a69a2 feat(supervisor): add addHandoffMessages option [closes #2499] (#2521) 
## Description
Adds an `addHandoffMessages` option to `createSupervisor` and
`createHandoffTool` (defaulting to `true` for backward compatibility).
When `false`, the supervisor-to-agent handoff bookkeeping messages (the
supervisor `AIMessage` with the handoff tool call and the handoff
`ToolMessage`) are omitted from the expert agent's message history,
matching the Python `langgraph-supervisor` behavior. This avoids invalid
tool-call sequences for providers that strictly validate them.

## Release Note
Add `addHandoffMessages` option to `@langchain/langgraph-supervisor` to
omit supervisor-to-agent handoff messages from expert agent history.

## Test Plan
- [ ] Verify expert agent history excludes handoff
`AIMessage`/`ToolMessage` when `addHandoffMessages: false`

Made by [Open SWE](https://openswe.vercel.app)

closes #2499

---------

Co-authored-by: Christian Bromann <731337+christian-bromann@users.noreply.github.com>
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Co-authored-by: Christian Bromann <git@bromann.dev>
 2026-06-10 15:18:59 -07:00
Christian Bromann ef04db316d docs: document first-class graph-state access for ToolNode tools (#2511) 
Tools running inside a ToolNode can already read the current graph state
via `getCurrentTaskInput()`, but this was not documented as a
first-class option and the browser-safe variant (passing config
explicitly) was not surfaced.

This adds:

- JSDoc on getCurrentTaskInput documenting the optional config arg and
browser usage
- A ToolNode JSDoc example showing how tools access graph state and
runtime context
- Browser-safe guidance in the agents context docs and the
pass-run-time-values-to-tools how-to (`getCurrentTaskInput(config)`)
- A regression test verifying a ToolNode tool can read graph state via
getCurrentTaskInput(config)

Closes #2506
 2026-06-10 15:18:04 -07:00
github-actions[bot] 39df14b11f chore: version packages (#2513) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-checkpoint@1.1.0

### Minor Changes

- [#2452](https://github.com/langchain-ai/langgraphjs/pull/2452)
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
`DeltaChannel` and the writes-history saver API (beta).

`DeltaChannel` is a reducer channel that stores only a sentinel in
checkpoint
blobs instead of the full accumulated value, reconstructing state on
read by
replaying ancestor writes through a batch reducer. This avoids
re-serializing
the entire accumulated value at every step (e.g. long message
histories).

- `DeltaChannel(reducer, { snapshotFrequency })` in
`@langchain/langgraph` —
count-based snapshot cadence (default `snapshotFrequency=1000`) plus a
system bound `DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT` (default 5000, env
        `LANGGRAPH_DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT`).
- `messagesDeltaReducer` — a batching-invariant messages reducer that
coerces
        raw object/string writes, for use with `DeltaChannel`.
- `BaseCheckpointSaver.getDeltaChannelHistory({ config, channels })`
(beta) —
walks the parent chain returning per-channel `{ writes, seed? }`, with a
        direct-storage override in `MemorySaver`.
- `counters_since_delta_snapshot` added to `CheckpointMetadata`;
`DeltaSnapshot`
        serialization support in the JSON+ serializer.

Reconstruction is wired through the Pregel read/execution paths
(initialization,
`getState`, `updateState`, local reads) and `exit` durability
accumulates and
anchors delta writes so threads remain reconstructible without forcing
    snapshots.

### Patch Changes

- [#2450](https://github.com/langchain-ai/langgraphjs/pull/2450)
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
node-level timeouts.

A `timeout` option is now supported on `StateGraph.addNode`, the
functional API
(`task`/`entrypoint`), and the `Send` constructor. Pass a number of
milliseconds
    for a hard wall-clock cap, or a `TimeoutPolicy` for finer control:

    ```ts
    import { TimeoutPolicy } from "@langchain/langgraph";

    // hard wall-clock cap on each attempt
    builder.addNode("agent", agentFn, { timeout: 60_000 });

    // full control
    builder.addNode("agent", agentFn, {
      timeout: {
        runTimeout: 60_000, // hard wall-clock cap, never refreshed
        idleTimeout: 10_000, // cap on time without observable progress
        refreshOn: "auto", // "auto" | "heartbeat"
      },
    });

    // per-task override
    new Send("agent", state, { timeout: { idleTimeout: 5_000 } });
    ```

    When a timeout fires, a `NodeTimeoutError` (carrying `node`, `kind`
(`"run"`/`"idle"`), `timeout`, `elapsed`, `runTimeout`, `idleTimeout`)
is raised,
the attempt's buffered writes are dropped, and the node's `AbortSignal`
is
aborted. `idleTimeout` is refreshed by observable progress (writes,
custom
stream-writer calls, child-task scheduling, callback events) or an
explicit
    `runtime.heartbeat()` call. The timer resets per retry attempt, and
    `NodeTimeoutError` is retryable under the default retry policy.

Ports langchain-ai/langgraph#7599,
[#7646](https://github.com/langchain-ai/langgraphjs/issues/7646), and
[#7659](https://github.com/langchain-ai/langgraphjs/issues/7659).

## @langchain/langgraph@1.4.0

### Minor Changes

- [#2449](https://github.com/langchain-ai/langgraphjs/pull/2449)
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
cooperative, between-superstep graph draining via `RunControl`.

    A new `RunControl` (exported from `@langchain/langgraph`) exposes
`requestDrain(reason)` plus read-only `drainRequested` / `drainReason`.
Pass it
through the new `control` option on `invoke` / `stream` / `streamEvents`
(and the
functional API). It is surfaced on `runtime.control`, so nodes can read
it or call
    `requestDrain()` themselves, and it is propagated into subgraphs.

When a drain is requested, the Pregel loop checks the flag at the top of
each
superstep (after the previous step's writes are applied and
checkpointed): if more
tasks remain it saves the checkpoint and throws the new `GraphDrained`
error (also
under `durability: "exit"`), so the run can be resumed later from the
same config.
If the graph naturally finishes on that tick it returns normally and the
caller can
inspect `control.drainRequested`. A drain requested inside a subgraph
bubbles up and
stops the parent at its next boundary. Draining never cancels work that
is already
running — pair it with an `AbortSignal` if you need a hard upper bound.

- [#2452](https://github.com/langchain-ai/langgraphjs/pull/2452)
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
`DeltaChannel` and the writes-history saver API (beta).

`DeltaChannel` is a reducer channel that stores only a sentinel in
checkpoint
blobs instead of the full accumulated value, reconstructing state on
read by
replaying ancestor writes through a batch reducer. This avoids
re-serializing
the entire accumulated value at every step (e.g. long message
histories).

- `DeltaChannel(reducer, { snapshotFrequency })` in
`@langchain/langgraph` —
count-based snapshot cadence (default `snapshotFrequency=1000`) plus a
system bound `DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT` (default 5000, env
        `LANGGRAPH_DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT`).
- `messagesDeltaReducer` — a batching-invariant messages reducer that
coerces
        raw object/string writes, for use with `DeltaChannel`.
- `BaseCheckpointSaver.getDeltaChannelHistory({ config, channels })`
(beta) —
walks the parent chain returning per-channel `{ writes, seed? }`, with a
        direct-storage override in `MemorySaver`.
- `counters_since_delta_snapshot` added to `CheckpointMetadata`;
`DeltaSnapshot`
        serialization support in the JSON+ serializer.

Reconstruction is wired through the Pregel read/execution paths
(initialization,
`getState`, `updateState`, local reads) and `exit` durability
accumulates and
anchors delta writes so threads remain reconstructible without forcing
    snapshots.

- [#2451](https://github.com/langchain-ai/langgraphjs/pull/2451)
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(langgraph): add node-level error handlers

`StateGraph.addNode(name, fn, { errorHandler })` now accepts a
first-class
node-level error handler. The handler runs ONLY after the failing node's
`retryPolicy` is exhausted, so retry and handling stay decoupled. It
receives a
typed `NodeError { node, error }` and the typed node input state, can
return a
state update, and can route to a recovery branch via `new Command({ goto
})`
    (saga / compensation flows).

Failure provenance is checkpointed (via a reserved `ERROR_SOURCE_NODE`
write) so
handlers observe the same context after a checkpoint resume. Uncaught
node
errors without a handler still abort the run as before, and
`GraphBubbleUp`
    errors (such as `interrupt()`) are never swallowed by a handler.

`StateGraph.setNodeDefaults({ errorHandler })` now also accepts a
graph-wide
default handler. It is materialized at `compile()` as a single shared
handler
and invoked for every regular node that does not set its own
`errorHandler`. A
per-node handler always takes precedence, the default never catches a
failure
raised by an error-handler node itself (handler failures fail the run),
and the
    default is not inherited by subgraphs.

    Ports the Python feature from langchain-ai/langgraph#7233.

- [#2450](https://github.com/langchain-ai/langgraphjs/pull/2450)
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
node-level timeouts.

A `timeout` option is now supported on `StateGraph.addNode`, the
functional API
(`task`/`entrypoint`), and the `Send` constructor. Pass a number of
milliseconds
    for a hard wall-clock cap, or a `TimeoutPolicy` for finer control:

    ```ts
    import { TimeoutPolicy } from "@langchain/langgraph";

    // hard wall-clock cap on each attempt
    builder.addNode("agent", agentFn, { timeout: 60_000 });

    // full control
    builder.addNode("agent", agentFn, {
      timeout: {
        runTimeout: 60_000, // hard wall-clock cap, never refreshed
        idleTimeout: 10_000, // cap on time without observable progress
        refreshOn: "auto", // "auto" | "heartbeat"
      },
    });

    // per-task override
    new Send("agent", state, { timeout: { idleTimeout: 5_000 } });
    ```

    When a timeout fires, a `NodeTimeoutError` (carrying `node`, `kind`
(`"run"`/`"idle"`), `timeout`, `elapsed`, `runTimeout`, `idleTimeout`)
is raised,
the attempt's buffered writes are dropped, and the node's `AbortSignal`
is
aborted. `idleTimeout` is refreshed by observable progress (writes,
custom
stream-writer calls, child-task scheduling, callback events) or an
explicit
    `runtime.heartbeat()` call. The timer resets per retry attempt, and
    `NodeTimeoutError` is retryable under the default retry policy.

Ports langchain-ai/langgraph#7599,
[#7646](https://github.com/langchain-ai/langgraphjs/issues/7646), and
[#7659](https://github.com/langchain-ai/langgraphjs/issues/7659).

- [#2461](https://github.com/langchain-ai/langgraphjs/pull/2461)
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
`StateGraph.setNodeDefaults()` for setting graph-wide node policy
defaults (`retryPolicy`, `cachePolicy`). Per-node values passed to
`addNode` always take precedence, and defaults are resolved at
`compile()` time so call order does not matter. Defaults are not
inherited by subgraphs. Ports Python's `set_node_defaults()`
(langchain-ai/langgraph#7747).

### Patch Changes

- [#2179](https://github.com/langchain-ai/langgraphjs/pull/2179)
[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(core): time travel replay/fork for graphs with interrupts and
subgraphs

Ports Python fixes for stale RESUME writes during replay, wrong subgraph
checkpoint loading during time travel, missing fork checkpoints on
replay, and direct-to-subgraph time travel.

- [#2514](https://github.com/langchain-ai/langgraphjs/pull/2514)
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(schema): expose StateSchema JSON schemas for Studio introspection

    Route StateSchema runtime definitions through getJsonSchema() and
    getInputJsonSchema() so LangGraph Studio receives state, input, and
    context schemas when graphs use the StateSchema primitive.

Fixes [#2466](https://github.com/langchain-ai/langgraphjs/issues/2466)

- [#2471](https://github.com/langchain-ai/langgraphjs/pull/2471)
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
perf(core): skip debug checkpoint snapshots when not streaming them

Avoid building full-state `mapDebugCheckpoint` payloads on every tick
when
    no consumer subscribed to `checkpoints` or `debug` stream modes. v3
companion checkpoint envelopes are unchanged (they come from values
metadata).

- [#2472](https://github.com/langchain-ai/langgraphjs/pull/2472)
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
perf(core): index pending writes for O(1) task-prep lookups

Build a PendingWritesIndex once per \_prepareNextTasks call so resume
and
skip-done-task checks avoid repeated linear scans over
checkpointPendingWrites.

- [#2473](https://github.com/langchain-ai/langgraphjs/pull/2473)
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
perf(core): optimize applyWrites, interrupt seen, and channel errors

Reduce allocations in \_applyWrites, fix O(N²) interrupt versions_seen
updates,
skip stack traces on EmptyChannelError control flow, and cache task
lists in
    the pregel loop and runner.

- [#2444](https://github.com/langchain-ai/langgraphjs/pull/2444)
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
feat(remote): add RemoteGraph v3 streaming support

Expose the v3 `streamEvents` surface for `RemoteGraph` by adapting
remote SDK thread streams to the local `GraphRunStream` shape.

- Updated dependencies
\[[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198)]:
    -   @langchain/langgraph-checkpoint@1.1.0

## @langchain/langgraph-checkpoint-mongodb@1.3.4

### Patch Changes

- [#2517](https://github.com/langchain-ai/langgraphjs/pull/2517)
[`67a4f8d`](https://github.com/langchain-ai/langgraphjs/commit/67a4f8da580eb527fa6f201a4c72895754fe37f7)
Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix:
`MongoDBSaver.putWrites` now honors `WRITES_IDX_MAP`, pinning special
channels (`__error__`, `__scheduled__`, `__interrupt__`, `__resume__`)
to fixed negative indices instead of the call-local ordinal. Previously
a mixed `putWrites([[...regular...], [INTERRUPT, …]], taskId)` placed
the INTERRUPT at a positive idx that could collide with a regular write
at the same `(task_id, idx)`, and the unconditional `$set` upsert
silently overwrote whichever row landed there first. The
conflict-resolution clause now matches the Postgres / SQLite (TS and
Python) checkpointers: `$set` only when every channel is a special one,
`$setOnInsert` otherwise.

## @langchain/langgraph-checkpoint-postgres@1.0.3

### Patch Changes

- [#2512](https://github.com/langchain-ai/langgraphjs/pull/2512)
[`375c73f`](https://github.com/langchain-ai/langgraphjs/commit/375c73fcd1ef06145301df80466fda35c0a99385)
Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix: reject SQL
`LIKE` wildcards (`%`, `_`) and the backslash escape character in
`PostgresStore` namespace labels. `BaseStore.search()` matches
namespaces via `namespace_path LIKE ${prefix}%`, and these characters in
caller-supplied namespace labels are interpreted as wildcards by
Postgres even through a bound parameter — letting a namespace prefix of
`["%"]` match every namespace in the store across tenants.
`validateNamespace` now throws for these characters at all `search` /
`get` / `put` entrypoints, keeping store-wide consistency. CWE-1336.

## @langchain/langgraph-checkpoint-redis@1.0.8

### Patch Changes

- [#2518](https://github.com/langchain-ai/langgraphjs/pull/2518)
[`9182ea3`](https://github.com/langchain-ai/langgraphjs/commit/9182ea35ecc1f932eb864fa7dc4fb32a00c5f7d6)
Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix:
`RedisSaver.putWrites` now honors `WRITES_IDX_MAP`, pinning special
channels (`__error__`, `__scheduled__`, `__interrupt__`, `__resume__`)
to fixed negative indices in their Redis key
(`checkpoint_write:…:<idx>`) instead of the call-local ordinal.
Previously a mixed `putWrites([[…regular…], [INTERRUPT, …]], taskId)`
placed the INTERRUPT key at the positive idx of its position in the
batch, where a peer task's regular write at the same idx would overwrite
it via the unconditional `JSON.SET`. The conflict-resolution clause now
matches Postgres / SQLite / MongoDB: unguarded `JSON.SET` when every
write is a special channel, `JSON.SET … NX` (insert-or-ignore)
otherwise.

## @langchain/langgraph-checkpoint-sqlite@1.0.3

### Patch Changes

- [#2516](https://github.com/langchain-ai/langgraphjs/pull/2516)
[`f6a6d26`](https://github.com/langchain-ai/langgraphjs/commit/f6a6d26b7e69003c4fa052f3cd3319f3e72f0f8f)
Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix:
`SqliteSaver.putWrites` now honors `WRITES_IDX_MAP`, pinning special
channels (`__error__`, `__scheduled__`, `__interrupt__`, `__resume__`)
to fixed negative indices instead of the call-local ordinal. Previously
a follow-up `putWrites([[INTERRUPT, …]], taskId)` for the same
checkpoint silently `REPLACE`d the regular write previously stored at
`idx=0` for that task, losing data. The conflict-resolution clause also
now matches the Python checkpointer contract: `OR REPLACE` only when
every channel is a special one (so e.g. INTERRUPT→RESUME state
transitions overwrite), `OR IGNORE` otherwise.

## @langchain/angular@1.0.21

### Patch Changes

- [#2515](https://github.com/langchain-ai/langgraphjs/pull/2515)
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix: make AnyStream a true supertype so selector hooks need no cast

    A concrete `useStream<typeof agent>()` handle was not assignable to
    `AnyStream` because generic-computed covariant members (`toolCalls`,
`values`) don't widen under `any` — `InferToolCalls<any>[]` resolves to
`AssembledToolCall<…, never>[]`, narrower than a concrete handle.
Override
    those members with their widest forms (preserving each framework's
reactivity wrapper — plain arrays for React/Svelte, `ShallowRef` for
Vue,
`Signal` for Angular) so the message/tool/value selector hooks accept a
    fully-typed stream without an `as AnyStream` cast.

## @langchain/react@1.0.21

### Patch Changes

- [#2515](https://github.com/langchain-ai/langgraphjs/pull/2515)
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix: make AnyStream a true supertype so selector hooks need no cast

    A concrete `useStream<typeof agent>()` handle was not assignable to
    `AnyStream` because generic-computed covariant members (`toolCalls`,
`values`) don't widen under `any` — `InferToolCalls<any>[]` resolves to
`AssembledToolCall<…, never>[]`, narrower than a concrete handle.
Override
    those members with their widest forms (preserving each framework's
reactivity wrapper — plain arrays for React/Svelte, `ShallowRef` for
Vue,
`Signal` for Angular) so the message/tool/value selector hooks accept a
    fully-typed stream without an `as AnyStream` cast.

## @langchain/svelte@1.0.21

### Patch Changes

- [#2515](https://github.com/langchain-ai/langgraphjs/pull/2515)
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix: make AnyStream a true supertype so selector hooks need no cast

    A concrete `useStream<typeof agent>()` handle was not assignable to
    `AnyStream` because generic-computed covariant members (`toolCalls`,
`values`) don't widen under `any` — `InferToolCalls<any>[]` resolves to
`AssembledToolCall<…, never>[]`, narrower than a concrete handle.
Override
    those members with their widest forms (preserving each framework's
reactivity wrapper — plain arrays for React/Svelte, `ShallowRef` for
Vue,
`Signal` for Angular) so the message/tool/value selector hooks accept a
    fully-typed stream without an `as AnyStream` cast.

## @langchain/vue@1.0.21

### Patch Changes

- [#2515](https://github.com/langchain-ai/langgraphjs/pull/2515)
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix: make AnyStream a true supertype so selector hooks need no cast

    A concrete `useStream<typeof agent>()` handle was not assignable to
    `AnyStream` because generic-computed covariant members (`toolCalls`,
`values`) don't widen under `any` — `InferToolCalls<any>[]` resolves to
`AssembledToolCall<…, never>[]`, narrower than a concrete handle.
Override
    those members with their widest forms (preserving each framework's
reactivity wrapper — plain arrays for React/Svelte, `ShallowRef` for
Vue,
`Signal` for Angular) so the message/tool/value selector hooks accept a
    fully-typed stream without an `as AnyStream` cast.

## @example/ai-elements@0.1.36

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0
    -   @langchain/react@1.0.21

## @examples/assistant-ui-claude@0.1.36

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0
    -   @langchain/react@1.0.21

## @examples/ui-angular@0.0.46

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0
    -   @langchain/angular@1.0.21

## @examples/ui-multimodal@0.0.22

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0
    -   @langchain/react@1.0.21

## @examples/ui-react@0.0.22

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`49b8c1a`](https://github.com/langchain-ai/langgraphjs/commit/49b8c1a04cf03a77069a955816b0f5af2f68ab41),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0
    -   @langchain/react@1.0.21

## langgraph@1.0.40

### Patch Changes

- Updated dependencies
\[[`01c67df`](https://github.com/langchain-ai/langgraphjs/commit/01c67dfa4dfea98509d6e1f35fa16de8c5d6a7c4),
[`d12d269`](https://github.com/langchain-ai/langgraphjs/commit/d12d2693308e37951266bc8197daa656daa6e2aa),
[`a8e7659`](https://github.com/langchain-ai/langgraphjs/commit/a8e7659a9d22fd84425aaf26bda88667c76b185a),
[`9e0201d`](https://github.com/langchain-ai/langgraphjs/commit/9e0201d8bd2d85490ca49e7e62126bda32b9121b),
[`9b96f60`](https://github.com/langchain-ai/langgraphjs/commit/9b96f60af64c0d25f780cfe00c1cb7698f3b5773),
[`8e06ace`](https://github.com/langchain-ai/langgraphjs/commit/8e06ace95cd2279a8cf9d350f01268a253376dc9),
[`d65a920`](https://github.com/langchain-ai/langgraphjs/commit/d65a9209d7fad603f45562c2b28c3d25502c8318),
[`2f6d873`](https://github.com/langchain-ai/langgraphjs/commit/2f6d87368e590ae2fc2a7990fd13cb0a5fe3c198),
[`a8b0036`](https://github.com/langchain-ai/langgraphjs/commit/a8b0036557333d16c95dfe51ccd61ee4cfdc600b),
[`4096933`](https://github.com/langchain-ai/langgraphjs/commit/4096933741e44d065e9b172f3bf86a621a88cc1e),
[`801d955`](https://github.com/langchain-ai/langgraphjs/commit/801d955d391f9fd9326a6696bff6c2f039883301)]:
    -   @langchain/langgraph@1.4.0

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.21 @langchain/langgraph-checkpoint-mongodb@1.3.4 @langchain/langgraph-checkpoint-postgres@1.0.3 @langchain/langgraph-checkpoint-redis@1.0.8 @langchain/langgraph-checkpoint-sqlite@1.0.3 @langchain/langgraph-checkpoint@1.1.0 @langchain/langgraph@1.4.0 @langchain/react@1.0.21 @langchain/svelte@1.0.21 @langchain/vue@1.0.21 		2026-06-10 10:41:31 -07:00
Jackjin 9182ea35ec fix(langgraph-checkpoint-redis): honor WRITES_IDX_MAP for special channels in putWrites (#2518) 
## Summary

Third in the series following #2516 (SQLite) and #2517 (MongoDB).
`RedisSaver.putWrites` stored each write at the call-local ordinal `idx`
— the key suffix in `checkpoint_write:<thread>:<ns>:<ckpt>:<task>:<idx>`
was just the loop index — and always used unguarded `JSON.SET`, ignoring
`WRITES_IDX_MAP`.

- A follow-up `putWrites([[INTERRUPT, value]], taskId)` for the same
checkpoint computed `idx=0` and collided with the task's first regular
write key; the unconditional `JSON.SET` silently overwrote whichever row
landed there first.
- A mixed call like `[[foo, …], [bar, …], [INTERRUPT, …]]` shifted the
INTERRUPT to idx=2, where a peer task storing a regular write at the
same idx for the same task_id would clobber it.

### Cross-impl parity after this PR

| Checkpointer | `WRITES_IDX_MAP` | Conflict clause |
|---|---|---|
| Memory (TS) | ✅ | gated by `idx >= 0` |
| Postgres (TS) | ✅ | `OR REPLACE` vs `INSERT` based on `all special` |
| SQLite (TS, #2516) | ✅ | `OR REPLACE` vs `OR IGNORE` based on `all
special` |
| MongoDB (TS, #2517) | ✅ | `$set` vs `$setOnInsert` based on `all
special` |
| **Redis (TS, this PR)** | ✅ | `JSON.SET` vs `JSON.SET … NX` based on
`all special` |

### Fix

1. Key suffix now resolves to `WRITES_IDX_MAP[channel] ?? idx`, so ERROR
/ SCHEDULED / INTERRUPT / RESUME land at fixed negative indices that
can't collide with per-step regular writes.
2. The `JSON.SET` call switches between unguarded and the `NX` modifier
depending on whether every write targets a special channel. State
transitions like INTERRUPT → RESUME still overwrite (both special); a
regular write from one task can never silently overwrite another
concurrent task's regular write at the same idx.

### Tests

Mock-based unit test in a new `putWrites.test.ts` (no Redis needed)
captures every `client.json.set` call site and asserts:

- Mixed regular + INTERRUPT batch → key tails `[-3, 0, 1]` (vs the
pre-fix `[0, 1, 2]`) and every JSON.SET carries `{ NX: true }`.
- Special-only batch (RESUME) → key tail `-4` and no NX (so state
transitions can overwrite).

**Reverse-verified**: with the fix reverted both new tests fail.

## AI Disclosure

Identified via cross-implementation review against #2516 and #2517 —
same root cause class, different storage layer.
 2026-06-09 23:05:32 -07:00
Christian Bromann 4096933741 fix(core): add RemoteGraph v3 streaming support (#2444) 
## Summary
- Add `RemoteGraph.streamEvents(..., { version: "v3" })` support backed
by SDK `ThreadStream`.
- Adapt remote v3 streams to the local `GraphRunStream` surface,
including values, messages, lifecycle, output, interrupts, abort, and
SSE encoding.
- Replace external-env RemoteGraph integration coverage with a local
LangGraph API server test.
 2026-06-09 23:03:44 -07:00
Jackjin 67a4f8da58 fix(langgraph-checkpoint-mongodb): honor WRITES_IDX_MAP for special channels in putWrites (#2517) 
## Summary

Follow-up to #2516 (which fixed the same bug for `SqliteSaver`).
`MongoDBSaver.putWrites` stored every write at the call-local ordinal
`idx` and always used `$set`, ignoring `WRITES_IDX_MAP`. So:

- A follow-up `putWrites([[INTERRUPT, value]], taskId)` for the same
checkpoint computed `idx=0` and collided with the task's first regular
write — the unconditional `$set` upsert silently overwrote whichever row
landed there first.
- A mixed call `putWrites([[foo, …], [bar, …], [INTERRUPT, …]], taskId)`
shifted the INTERRUPT to idx=2, where a peer task storing a regular
write at the same idx for the same task_id would clobber it.

The fix mirrors `BaseCheckpointSaver.put_writes` semantics and the
Postgres / SQLite (TS and Python) implementations.

### Cross-impl parity after this PR

| Checkpointer | `WRITES_IDX_MAP` | Conflict clause |
|---|---|---|
| Memory (TS) | ✅ | gated by `idx >= 0` |
| Postgres (TS) | ✅ | `OR REPLACE` vs `INSERT` based on `all special` |
| SQLite (TS, #2516) | ✅ | `OR REPLACE` vs `OR IGNORE` based on `all
special` |
| **MongoDB (TS, this PR)** | ✅ | `$set` vs `$setOnInsert` based on `all
special` |
| Redis (TS) | ❌ | follow-up needed |

### Fix

1. `idx` resolves to `WRITES_IDX_MAP[channel] ?? idx`, so ERROR /
SCHEDULED / INTERRUPT / RESUME land at fixed negative indices that can't
collide with per-step regular writes.
2. The update operator switches between `$set` and `$setOnInsert`
depending on whether every write targets a special channel. State
transitions like INTERRUPT → RESUME still overwrite (both special); a
regular write from one task can never silently overwrite another
concurrent task's regular write at the same idx.

When timestamps are enabled, the `$setOnInsert` path also defers
`upserted_at` to insert-only, so a no-op upsert against a peer task's
existing row doesn't bump that row's "last modified" stamp.

### Tests

Mock-based unit test (no real MongoDB needed) captures `bulkWrite`
operations and asserts:
- Mixed regular + INTERRUPT batch → indices `[-3, 0, 1]` (vs the pre-fix
`[0, 1, 2]`) and every op uses `$setOnInsert`.
- Special-only batch (RESUME) → idx `-4` and uses `$set`.

**Reverse-verified**: with the fix reverted the test fails with
`Received [0, 1, 2]`.

## AI Disclosure

Identified via cross-implementation review against the SQLite fix in
#2516 — same root cause class, separate test surface.
 2026-06-09 22:59:46 -07:00
Christian Bromann 92f77927fb fix(api): fix peer dep range 2026-06-09 22:42:07 -07:00
Christian Bromann 01c67dfa4d fix(core): replay bug, direct to subgraphs (#2179) 
## Summary

Ports Python time-travel fixes
([#7038](https://github.com/langchain-ai/langgraph/pull/7038),
[#7115](https://github.com/langchain-ai/langgraph/pull/7115),
[#7498](https://github.com/langchain-ai/langgraph/pull/7498),
[#7499](https://github.com/langchain-ai/langgraph/pull/7499)) into
`@langchain/langgraph` so replay/fork behave correctly with interrupts
and nested subgraphs.

- **Stale `RESUME` on replay** — Replaying from a checkpoint before an
interrupt no longer consumes cached resume writes; interrupts re-fire
with the correct payload.
- **Subgraph checkpoint loading on time travel** — Introduces
`ReplayState` (`CONFIG_KEY_REPLAY_STATE`) so nested subgraphs load the
checkpoint that existed at the replay point on first visit, then resume
normal head loading within the same run.
- **Parent fork checkpoints on replay** — Time travel runs through
`PregelLoop._first()` (not `stream()` delegation on the parent
`Pregel`), creating an eager `source: "fork"` checkpoint and propagating
`ReplayState` to subgraphs.
- **Direct-to-subgraph time travel** — `getState()` subgraph delegation
is guarded with `CONFIG_KEY_READ`; direct subgraph configs strip stale
`RESUME` writes and prefer explicit `checkpoint_id` over
`checkpoint_map` when both are set.
- **Streaming** — Fixes subgraph interrupt namespace when streaming with
`subgraphs: true` (empty `checkpoint_ns` no longer becomes `[""]`;
parent emits interrupts under the deepest `checkpoint_map` namespace).

Closes #2325 (supersedes the earlier partial port).

### Implementation notes

| Area | Change |
|------|--------|
| `pregel/replay.ts` | New `ReplayState` class (mirrors Python) |
| `pregel/loop.ts` | Replay/time-travel detection, fork creation,
`RESUME` stripping, `ReplayState` wiring, stream namespace helpers |
| `pregel/index.ts` | `getState` subgraph delegation guard only (removed
`stream()` bypass that skipped parent fork creation) |
| Tests | `time_travel.test.ts` (14), `time_travel_extended.test.ts`
(33), shared `time_travel_helpers.ts`, Vitest matchers `toBeInterrupted`
/ `toHaveInterruptValue` |

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-06-09 22:40:56 -07:00
Christian Bromann a8e7659a9d feat(core): DeltaChannel + writes-history saver API (#2452) 
`DeltaChannel` is a reducer channel that stores only a sentinel in
checkpoint blobs instead of the full accumulated value, reconstructing
state on read by replaying ancestor writes through a batch reducer. This
avoids re-serializing the entire accumulated value at every step (e.g.
long message histories).

- `DeltaChannel(reducer, { snapshotFrequency })` in
`@langchain/langgraph`, count-based snapshot cadence (default
`snapshotFrequency=1000`) plus a system bound
`DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT` (default 5000, env
`LANGGRAPH_DELTA_MAX_SUPERSTEPS_SINCE_SNAPSHOT`).
- `messagesDeltaReducer` — a batching-invariant messages reducer that
coerces raw object/string writes, for use with `DeltaChannel`.
- `BaseCheckpointSaver.getDeltaChannelHistory({ config, channels })`
(beta), walks the parent chain returning per-channel `{ writes, seed?
}`, with a direct-storage override in `MemorySaver`.
- `counters_since_delta_snapshot` added to `CheckpointMetadata`;
`DeltaSnapshot` serialization support in the JSON+ serializer.

Reconstruction is wired through the Pregel read/execution paths
(initialization, `getState`, `updateState`, local reads) and `exit`
durability accumulates and anchors delta writes so threads remain
reconstructible without forcing snapshots.
 2026-06-09 22:12:09 -07:00
Christian Bromann d12d269330 feat(langgraph): cooperative graph drain via RunControl (#2449) 
## Summary

Ports Python PR
[langchain-ai/langgraph#7274](https://github.com/langchain-ai/langgraph/pull/7274)
("allow graph to graceful shutdown/drain by request") to LangGraphJS.
Adds cooperative, between-superstep draining so a run can be asked to
stop at the next superstep boundary, persist its checkpoint, and surface
a resumable terminal error.

This is the JS PR for the **Graph draining / graceful shutdown** parity
unit.

## What's added

- **`RunControl`** (new `pregel/runtime.ts`, exported from
`@langchain/langgraph`): a run-scoped handle with `requestDrain(reason =
"shutdown")` and read-only `drainRequested` / `drainReason`.
- **`GraphDrained`** (`errors.ts`): a `GraphBubbleUp` subclass carrying
`reason`, thrown when a run exits early due to drain. Plus an
`isGraphDrained` guard.
- **`control` option** on `invoke` / `stream` / `streamEvents` /
`invoke`'s functional-API equivalents. It is surfaced on
`runtime.control` (nodes can read it or call `requestDrain()`), and
propagated into subgraphs. A fresh `RunControl` is provided per run when
none is passed.

## Semantics (cooperative, between-superstep)

`requestDrain()` flips a flag. The Pregel loop checks it at the top of
each `tick()`, **after** the previous superstep's writes have been
applied and checkpointed and the next tasks have been prepared. It never
preempts work that is already running.

| Scenario | Behavior |
|---|---|
| Node mid-execution | Runs to completion; drain takes effect at the
next superstep. |
| Graph naturally finishes on the same tick where drain was requested |
Returns normally (status `done`). No `GraphDrained`. Caller can inspect
`control.drainRequested`. |
| More tasks remain | Saves the last completed superstep's checkpoint
(also under `durability: "exit"`) and throws `GraphDrained(reason)`.
Resume with `invoke(null, config)`. |
| Subgraph requests drain | `GraphDrained` bubbles up through the parent
loop and stops it at its own next boundary; the parent's checkpoint is
saved and resumable. |

Draining does **not** cancel async work. Pair it with an `AbortSignal`
if you need a hard upper bound (see the `drain then cancel after a
graceful timeout` test).

## Files

- `errors.ts` — `GraphDrained` + `isGraphDrained`
- `pregel/runtime.ts` — `RunControl`
- `pregel/runnable_types.ts` — `control?: RunControl` on `Runtime`
- `pregel/types.ts` — `control` on `PregelOptions`
- `pregel/utils/config.ts`, `constants.ts` — config-key wiring
- `pregel/loop.ts` — `"draining"` status + drain check at the tick
boundary
- `pregel/index.ts` — option wiring + raising `GraphDrained`
- `pregel/runner.ts` — subgraph drain bubble-up handling

## Tests

`libs/langgraph-core/src/tests/run_control.test.ts` (14 tests, all sync
+ async where applicable):
drain stops the next step (sync/async), terminal-step drain finishes
normally, exit- and default-durability resume, pre-drained control,
subgraph → parent bubble + resume, external concurrent drain,
drain-then-cancel via `AbortSignal`, reading/`requestDrain()` via
`runtime.control`, `stream()` accepts control, and functional-API
in-flight `task` futures still resolve. Full package suite passes (1358
+ 14, 0 failures); lint and format are clean.

## Notable divergence from Python

Python added `"drained"` to a local `SubgraphStatus` literal. The JS v3
stream lifecycle uses `AgentStatus` from the external
`@langchain/protocol` package, which has no `"drained"` member, so
`GraphDrained` propagates through streams as the terminal error rather
than as a new lifecycle status. The parity-relevant signal — the
`GraphDrained` exception — is what consumers catch. Noted in the
changeset.

## Source

- Python PR: https://github.com/langchain-ai/langgraph/pull/7274
- Parity plan section: Graph draining / graceful shutdown
 2026-06-09 21:53:30 -07:00
Christian Bromann d65a9209d7 feat(langgraph): add node-level error handlers (#2451) 
`StateGraph.addNode(name, fn, { errorHandler })` now accepts a
first-class node-level error handler. The handler runs ONLY after the
failing node's `retryPolicy` is exhausted, so retry and handling stay
decoupled. It receives a typed `NodeError { node, error }`, can return a
state update, and can route to a recovery branch via `new Command({ goto
})` (saga / compensation flows).

Failure provenance is checkpointed (via a reserved `ERROR_SOURCE_NODE`
write) so handlers observe the same context after a checkpoint resume.
Uncaught node errors without a handler still abort the run as before,
and `GraphBubbleUp` errors (such as `interrupt()`) are never swallowed
by a handler.

Ports the Python feature from langchain-ai/langgraph#7233.
 2026-06-09 21:52:45 -07:00
Christian Bromann 2f6d87368e feat(langgraph): add node-level timeouts (timeout on addNode, task, entrypoint, Send) (#2450) 
A `timeout` option is now supported on `StateGraph.addNode`, the
functional API (`task`/`entrypoint`), and the `Send` constructor. Pass a
number of milliseconds for a hard wall-clock cap, or a `TimeoutPolicy`
for finer control:

```ts
import { TimeoutPolicy } from "@langchain/langgraph";

// hard wall-clock cap on each attempt
builder.addNode("agent", agentFn, { timeout: 60_000 });

// full control
builder.addNode("agent", agentFn, {
  timeout: {
    runTimeout: 60_000, // hard wall-clock cap, never refreshed
    idleTimeout: 10_000, // cap on time without observable progress
    refreshOn: "auto", // "auto" | "heartbeat"
  },
});

// per-task override
new Send("agent", state, { idleTimeout: 5_000 });
```

When a timeout fires, a `NodeTimeoutError` (carrying `node`, `kind`
(`"run"`/`"idle"`), `timeout`, `elapsed`, `runTimeout`, `idleTimeout`)
is raised, the attempt's buffered writes are dropped, and the node's
`AbortSignal` is aborted. `idleTimeout` is refreshed by observable
progress (writes, custom stream-writer calls, child-task scheduling,
callback events) or an explicit `runtime.heartbeat()` call. The timer
resets per retry attempt, and `NodeTimeoutError` is retryable under the
default retry policy.

Ports langchain-ai/langgraph `#7599`, `#7646`, and `#7659`.
 2026-06-09 20:50:22 -07:00
Jackjin f6a6d26b7e fix(langgraph-checkpoint-sqlite): honor WRITES_IDX_MAP for special channels in putWrites (#2516) 
## Summary

`SqliteSaver.putWrites` stored every write at the call-local ordinal
`idx`, ignoring `WRITES_IDX_MAP`. So when an `INTERRUPT` (or `ERROR` /
`SCHEDULED` / `RESUME`) followed a regular write for the same task, both
landed at `idx=0` and the table PK `(thread_id, checkpoint_ns,
checkpoint_id, task_id, idx)` collided — `INSERT OR REPLACE` silently
dropped the regular write.

Other checkpointer implementations (Memory in `libs/checkpoint`,
Postgres) and the **Python** SQLite checkpointer
(`langgraph/checkpoint/sqlite/__init__.py`) all pin special channels to
fixed negative indices via `WRITES_IDX_MAP` so they can't collide with
per-step regular writes.

### Cross-impl parity before this PR

| Checkpointer | `WRITES_IDX_MAP` | Conflict clause |
|---|---|---|
| Memory (TS) | ✅ | gated by `idx >= 0` |
| Postgres (TS) | ✅ | `OR REPLACE` vs `INSERT` based on `all special` |
| Python SQLite | ✅ | `OR REPLACE` vs `OR IGNORE` based on `all special`
|
| **TS SQLite** | ❌ | always `OR REPLACE` |

### Fix

1. `idx` resolves to `WRITES_IDX_MAP[channel] ?? idx`.
2. Statement switches between `INSERT OR REPLACE` and `INSERT OR IGNORE`
depending on whether every write targets a special channel, matching
`langgraph/checkpoint/sqlite/__init__.py`. INTERRUPT→RESUME state
transitions overwrite (both special); concurrent tasks can't clobber
each other's regular writes at the same idx.

### Tests

New regression test interleaves regular and special-channel writes
across two tasks (`task_A` does regular writes → INTERRUPT → RESUME,
`task_B` does a regular write). All five logical writes survive
`getTuple().pendingWrites`.

**Reverse-verified**: without the fix, `task_A:foo` and
`task_A:__interrupt__` both disappear from the round-trip — the test
fails with `Set { task_A:__resume__, task_A:bar, task_B:baz }`.

## AI Disclosure

This bug was identified via cross-implementation review against the
Python SQLite checkpointer and TS `MemorySaver` / `PostgresSaver`, with
AI assistance. The fix mirrors the Python reference implementation.
 2026-06-09 20:31:08 -07:00
Christian Bromann 49b8c1a04c fix: make AnyStream a true supertype so selector hooks need no cast (#2515) 
## Summary
- `AnyStream` (`UseStreamReturn<any, any, any>`) was not actually a
supertype of concrete stream handles: members computed from the generics
in covariant positions don't collapse under `any`. `toolCalls` resolves
via `InferToolCalls<any>` to `AssembledToolCall<string, …, never>[]`,
whose `never` output slot is narrower than a concrete handle's
`unknown`, so `UseStreamReturn<typeof agent>` failed to assign and every
`useMessages`/`useToolCalls`/`useValues` (`inject*` on Angular) call
required an `as AnyStream` cast.
- Redefined `AnyStream` in all four framework packages to `Omit` the
generic-computed members and re-add them at their widest forms,
preserving each framework's reactivity wrapper: plain arrays for
React/Svelte, `Readonly<ShallowRef<…>>` for Vue, `Signal<…>` for
Angular. React also drops `~stateType` (the only package that has that
member).
- Retyped each package's internal `getRegistry` to accept `AnyStream`,
removed React's duplicate local `AnyStream` in `selectors.ts` in favor
of the public type, and corrected the misleading doc comments.
- Downstream (`langchainplus` agent-chat-v2) can drop its `stream as
AnyStream` casts once these ship.
 2026-06-09 20:27:08 -07:00
Christian Bromann 801d955d39 feat(langgraph): add StateGraph.setNodeDefaults() for graph-wide node policy defaults (#2461) 
## Summary
- Add `StateGraph.setNodeDefaults({ retryPolicy?, cachePolicy? })` for
graph-wide node policy defaults, resolved at `compile()` so call order
does not matter; per-node `addNode` options always take precedence.
- Defaults are not inherited by subgraphs (parity with Python #7747).
- Consolidate duplicate `retryPolicy` / `cachePolicy` fields into
exported `NodePolicyOptions` with shared TSDoc; `NodeDefaults` and
`StateGraphAddNodeOptions` both use it; internal specs use
`ResolvedNodePolicies` after boolean `cachePolicy` normalization.
 2026-06-09 18:43:31 -07:00
Christian Bromann 9b96f60af6 perf(core): gate debug checkpoint snapshots on stream mode (#2471) 
## Summary
- Skip building full-state `mapDebugCheckpoint` payloads on every tick
unless the stream subscribes to `checkpoints` or `debug`.
- Gate `mapDebugTasks` the same way for `tasks` or `debug`, including
dynamically pushed tasks in `acceptPush`.
- v3 `streamEvents` companion `checkpoints` events are unchanged; they
are derived from values metadata, not `mapDebugCheckpoint`.

This change only skips building full-state mapDebugCheckpoint / pre-run
mapDebugTasks payloads when the stream is not subscribed to checkpoints,
tasks, or debug. Execution, checkpoint persistence, and emitted chunks
for a given streamMode are unchanged, `_emit` already dropped those
events for other modes, so this removes wasted work rather than altering
behavior.

v3 streamEvents companion checkpoints envelopes are unaffected; they
come from values metadata via `_emitValuesWithCheckpointMeta`, not from
`mapDebugCheckpoint`. Subscribers to checkpoints, tasks, or debug still
receive the same debug snapshots as before.

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-06-09 18:01:36 -07:00
Christian Bromann 8e06ace95c perf(core): index pending writes for O(1) task-prep lookups (#2472) 
## Summary
- Add `PendingWritesIndex` built once in `_prepareNextTasks` with maps
for null resume, per-task resume values, and task IDs with successful
writes.
- Use the index in `_scratchpad` and PULL early-exit checks instead of
repeated `find`/`filter`/`some` over `pendingWrites`.
- Preserve linear-scan fallbacks when `_prepareSingleTask` is invoked
without a pre-built index.

This is a performance-only change: task preparation and resume behavior
are unchanged.
 2026-06-09 17:20:37 -07:00
Christian Bromann a8b0036557 perf(core): optimize applyWrites, interrupt seen, and channel errors (#2473) 
## Summary
- Optimize `_applyWrites`: pre-compute sort paths, `RESERVED_SET`, and a
single pass over tasks for version tracking and channel consumption.
- Fix `_first` interrupt `versions_seen` updates from O(N²) spreads to
one object build (also avoids mutating shallow-copied checkpoint refs).
- Skip V8 stack capture for `EmptyChannelError` (control-flow throws on
channel reads).
- Cache `Object.values(this.tasks)` in `tick()` and
`Object.values(this.loop.tasks)` in the runner.
 2026-06-09 17:20:21 -07:00
Christian Bromann 9e0201d8bd fix(core): expose StateSchema JSON schemas for Studio introspection (#2514) 
## Summary
- Fix schema introspection for graphs built with `StateSchema` so
LangGraph Studio receives correct state, input, update, and output JSON
schemas.
- Add regression coverage for `new StateGraph(StateSchema,
z.object(...))`, including context/config schema exposure.
- Closes #2466.
 2026-06-09 17:06:51 -07:00
Jackjin 375c73fcd1 fix(langgraph-checkpoint-postgres): reject SQL LIKE wildcards in PostgresStore namespace labels (#2512) 
## Summary

`BaseStore.search()` on `PostgresStore` matches namespaces via
`namespace_path LIKE \${prefix}%` (bound parameter). The bind protects
against SQL injection but **does not** keep Postgres from interpreting
`%`, `_`, or `\` inside the label itself as `LIKE` wildcards / escape
characters. So a caller-supplied namespace prefix containing `%`
silently widens the prefix into a glob — data leaks across namespaces in
any multi-tenant deployment that pipes configurable values into a
`BaseStore` namespace.

`InMemoryStore` is unaffected — it compares prefixes via literal
`String.startsWith()`.

### Repro (conceptually, against the old `validateNamespace`)

```ts
const store = PostgresStore.fromConnString(url);

// tenant A writes private data
await store.put(["acme", "users", "alice"], "preferences", { theme: "dark" });

// tenant B searches under their own namespace — fine
await store.search(["other-tenant"]);

// but B can also do this, and the search returns A's row:
await store.search(["%"]);            // matches every namespace
await store.search(["a%", "users"]);  // matches "acme:users", "any:users", ...
```

After this PR `validateNamespace` rejects `%` / `_` / `\` at all
`search` / `get` / `put` / `delete` entrypoints, matching the existing
handling of `.` and empty labels.

### Tests

New `src/store/modules/utils.test.ts` exercises `validateNamespace`
directly (it's a pure function, so no live Postgres needed). 8 new cases
cover each wildcard char in isolation, in combination with other
letters, and at non-first positions; benign characters that *look*
similar (`-`, `:`, digits, unicode) are explicitly allowed.

**Reverse-verified**: with this PR's `utils.ts` reverted, 7 of the 7 new
LIKE-wildcard tests fail (`expected [Function] to throw an error /
Received undefined`).

### Consistency

| Store | Namespace prefix match | Wildcard handling |
|-------|------------------------|--------------------|
| `InMemoryStore` | `String.startsWith()` (literal) | n/a — already safe
|
| `PostgresStore` | `namespace_path LIKE \${prefix}%` | wildcards
rejected at validation (this PR) |
| `RedisStore` (precedent) | `KEYS namespace:*:...` | already rejects
`*`/`?`/`[`/`]`/`\` via `assertSafeKeyComponent` |

CWE-1336 (Improper Neutralization of Special Elements Used in a Template
Engine).

## AI Disclosure

This issue was identified via cross-store consistency review with AI
assistance, and the fix was validated against a focused unit-test suite
plus reverse-verification (test suite fails without the fix).
 2026-06-09 13:44:22 -07:00
github-actions[bot] 2f88a7116c chore: version packages (#2509) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-sdk@1.9.20

### Patch Changes

- [#2508](https://github.com/langchain-ai/langgraphjs/pull/2508)
[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): hydrate custom HttpAgentServerAdapter via transport getState

StreamController now prefers adapter getState() before
client.threads.getState,
HttpAgentServerAdapter implements GET /threads/:id/state, and useStream
inherits
apiUrl from the transport so hydration no longer defaults to
localhost:8123.

## @langchain/angular@1.0.20

### Patch Changes

- [#2508](https://github.com/langchain-ai/langgraphjs/pull/2508)
[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): hydrate custom HttpAgentServerAdapter via transport getState

StreamController now prefers adapter getState() before
client.threads.getState,
HttpAgentServerAdapter implements GET /threads/:id/state, and useStream
inherits
apiUrl from the transport so hydration no longer defaults to
localhost:8123.

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20

## @langchain/react@1.0.20

### Patch Changes

- [#2508](https://github.com/langchain-ai/langgraphjs/pull/2508)
[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): hydrate custom HttpAgentServerAdapter via transport getState

StreamController now prefers adapter getState() before
client.threads.getState,
HttpAgentServerAdapter implements GET /threads/:id/state, and useStream
inherits
apiUrl from the transport so hydration no longer defaults to
localhost:8123.

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20

## @langchain/svelte@1.0.20

### Patch Changes

- [#2508](https://github.com/langchain-ai/langgraphjs/pull/2508)
[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): hydrate custom HttpAgentServerAdapter via transport getState

StreamController now prefers adapter getState() before
client.threads.getState,
HttpAgentServerAdapter implements GET /threads/:id/state, and useStream
inherits
apiUrl from the transport so hydration no longer defaults to
localhost:8123.

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20

## @langchain/vue@1.0.20

### Patch Changes

- [#2508](https://github.com/langchain-ai/langgraphjs/pull/2508)
[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): hydrate custom HttpAgentServerAdapter via transport getState

StreamController now prefers adapter getState() before
client.threads.getState,
HttpAgentServerAdapter implements GET /threads/:id/state, and useStream
inherits
apiUrl from the transport so hydration no longer defaults to
localhost:8123.

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20

## @example/ai-elements@0.1.35

### Patch Changes

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/react@1.0.20

## @examples/assistant-ui-claude@0.1.35

### Patch Changes

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/react@1.0.20

## @examples/ui-angular@0.0.45

### Patch Changes

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20
    -   @langchain/angular@1.0.20

## @examples/ui-multimodal@0.0.21

### Patch Changes

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/react@1.0.20

## @examples/ui-react@0.0.21

### Patch Changes

- Updated dependencies
\[[`41cd05a`](https://github.com/langchain-ai/langgraphjs/commit/41cd05a411ed262443c2bd1048e1b728b7331ac6)]:
    -   @langchain/langgraph-sdk@1.9.20
    -   @langchain/react@1.0.20

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.20 @langchain/langgraph-sdk@1.9.20 @langchain/react@1.0.20 @langchain/svelte@1.0.20 @langchain/vue@1.0.20 		2026-06-08 18:08:19 -07:00
Christian Bromann 41cd05a411 fix(sdk): hydrate custom transport without extra client config (#2508) 
## Summary
- `StreamController.hydrate()` calls `transport.getState()` when the
adapter implements it, then falls back to `client.threads.getState()`.
- `HttpAgentServerAdapter` / `ProtocolSseTransportAdapter` add
`getState()` via `GET /threads/:threadId/state` (optional `paths.state`
override).
- `resolveClientApiUrl()` lets `useStream` build the hydration `Client`
from the transport’s `apiUrl` when none is passed explicitly.
- React, Vue, and Angular `useStream` hooks use the resolver so
custom-backend apps only need `transport={adapter}`.
 2026-06-08 18:06:16 -07:00
github-actions[bot] 92ea6ab754 chore: version packages (#2507) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-checkpoint-validation@1.1.0

### Minor Changes

- [#2503](https://github.com/langchain-ai/langgraphjs/pull/2503)
[`6e850fb`](https://github.com/langchain-ai/langgraphjs/commit/6e850fbabc842bb495352fbd6ef424c67ab0948f)
Thanks [@jkennedyvz](https://github.com/jkennedyvz)! -
fix(langgraph-checkpoint-validation): align node engine with vitest

## @langchain/langgraph-api@1.3.0

### Minor Changes

- [#2505](https://github.com/langchain-ai/langgraphjs/pull/2505)
[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
Consolidate the protocol session's channel inference, channel-set
validation, and namespace prefix matching onto the shared
`@langchain/langgraph/stream` helpers instead of maintaining local
copies. This removes duplicated logic across `session/index.mts`,
`session/namespace.mts`, `session/internal-types.mts`, and
`service.mts`.

This also aligns SSE event-sink filtering (`matchesSinkFilter`) with the
WebSocket subscription matcher: both now normalize dynamic namespace
suffixes (e.g. a `["fetcher"]` namespace filter matches an event emitted
under `["fetcher:<uuid>"]`). Previously the SSE path used a stricter
exact-segment match.

Because the session now imports `@langchain/langgraph/stream`, the
`@langchain/langgraph` peer dependency floor is raised to `^1.3.6` (the
first release that ships the `/stream` entrypoint).

### Patch Changes

-   Updated dependencies \[]:
    -   @langchain/langgraph-ui@1.3.0

## @langchain/langgraph-checkpoint-sqlite@1.0.2

### Patch Changes

- [#2504](https://github.com/langchain-ai/langgraphjs/pull/2504)
[`e8a0940`](https://github.com/langchain-ai/langgraphjs/commit/e8a09409ac4a997012e78081160c91188ebe39fc)
Thanks [@jackjin1997](https://github.com/jackjin1997)! - fix:
`SqliteSaver.list({}, { filter })` now honors arbitrary metadata keys
(e.g. `tenant_id`, `env`), matching the behavior of the MongoDB,
Postgres, and Redis checkpointers. Previously only `source`, `step`, and
`parents` were honored — any other key was silently dropped, returning
unfiltered results.

## @langchain/langgraph-cli@1.3.0

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-api@1.3.0

## @langchain/langgraph@1.3.7

### Patch Changes

- [#2505](https://github.com/langchain-ai/langgraphjs/pull/2505)
[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)
Thanks [@christian-bromann](https://github.com/christian-bromann)! - Add
the `@langchain/langgraph/stream` entrypoint — a transport-agnostic
backend toolkit for building custom servers on top of the v2 streaming
protocol. Alongside the existing `StreamChannel` and
`convertToProtocolEvent`, it exposes subscription primitives, typed
against a minimal `MatchableEvent` shape so they work on both the core
`ProtocolEvent` and the wire-level `Event` from `@langchain/protocol`:

- `inferChannel(event)` — map an event to its subscription `Channel`
(named `custom:<name>` channels included).
- `matchesSubscription(event, definition)` — decide whether a buffered
event should be delivered for a `SubscribeParams` filter, honoring
channel, namespace prefix/depth, and an optional `since` replay cursor.
- `isPrefixMatch(namespace, prefix)` /
`normalizeNamespaceSegment(segment)` — namespace prefix matching with
dynamic-suffix normalization (e.g. `fetcher:<uuid>` matches the
`fetcher` prefix).
- `SUPPORTED_CHANNELS` / `isSupportedChannel(value)` — the recognized
channel set and a guard for validating subscription requests.

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-sdk@1.9.19

## @langchain/langgraph-sdk@1.9.19

### Patch Changes

- [#2505](https://github.com/langchain-ai/langgraphjs/pull/2505)
[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
Deduplicate the client stream transports: the protocol transport now
shares the SSE decoder and `IterableReadableStream` helpers with the
legacy transport instead of carrying its own copies. Removes the
redundant `transport/decoder.ts` and `transport/stream.ts` shims (and a
dead `StreamPart` re-export), importing the shared utilities from
`utils/sse.ts` directly. No public API or behavior change.

## @langchain/angular@1.0.19

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-sdk@1.9.19

## @langchain/react@1.0.19

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-sdk@1.9.19

## @langchain/svelte@1.0.19

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-sdk@1.9.19

## @langchain/vue@1.0.19

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph-sdk@1.9.19

## @langchain/langgraph-ui@1.3.0



## @example/ai-elements@0.1.34

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7
    -   @langchain/react@1.0.19

## @examples/assistant-ui-claude@0.1.34

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7
    -   @langchain/react@1.0.19

## @examples/ui-angular@0.0.44

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5),
[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7
    -   @langchain/langgraph-sdk@1.9.19
    -   @langchain/angular@1.0.19

## @examples/ui-multimodal@0.0.20

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7
    -   @langchain/react@1.0.19

## @examples/ui-react@0.0.20

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5),
[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7
    -   @langchain/langgraph-sdk@1.9.19
    -   @langchain/react@1.0.19

## langgraph@1.0.39

### Patch Changes

- Updated dependencies
\[[`cad31b4`](https://github.com/langchain-ai/langgraphjs/commit/cad31b42f001a87fcdf57c4c084c655c8762b6a5)]:
    -   @langchain/langgraph@1.3.7

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.19 @langchain/langgraph-api@1.3.0 @langchain/langgraph-checkpoint-sqlite@1.0.2 @langchain/langgraph-checkpoint-validation@1.1.0 @langchain/langgraph-cli@1.3.0 @langchain/langgraph-sdk@1.9.19 @langchain/langgraph-ui@1.3.0 @langchain/langgraph@1.3.7 @langchain/react@1.0.19 @langchain/svelte@1.0.19 @langchain/vue@1.0.19 		2026-06-08 14:00:32 -07:00
Christian Bromann cad31b42f0 chore(sdk): centralize protocol helpers across core, api, and sdk (#2505) 
## Summary
- Add `@langchain/langgraph/stream` in `@langchain/langgraph` — a
curated backend entrypoint for custom transports with `StreamChannel`,
`convertToProtocolEvent`, and shared subscription primitives
(`inferChannel`, `matchesSubscription`, `isPrefixMatch`,
`normalizeNamespaceSegment`, `SUPPORTED_CHANNELS`,
`isSupportedChannel`), typed against a minimal `MatchableEvent` shape.
- Refactor `@langchain/langgraph-api` to import those helpers instead of
maintaining local copies in the protocol session and SSE sink filter,
and raise the `@langchain/langgraph` peer floor to `^1.3.6`.
- Align SSE `matchesSinkFilter` with WebSocket subscription matching by
using the same namespace suffix normalization (e.g. `["fetcher"]` now
matches `["fetcher:<uuid>"]`).
- Deduplicate `@langchain/langgraph-sdk` client transports by removing
redundant protocol `transport/decoder.ts` and `transport/stream.ts`
shims and importing shared utilities from `utils/sse.ts` directly.
 2026-06-08 13:54:07 -07:00
Jackjin e8a09409ac fix(langgraph-checkpoint-sqlite): allow filter on arbitrary metadata keys in list() (#2504) 
## Summary

`SqliteSaver.list({}, { filter })` was silently dropping any filter key
that wasn't `source`, `step`, or `parents` — returning the full
unfiltered result set instead. The other checkpointers (MongoDB,
Postgres, Redis) all accept arbitrary metadata keys, so SQLite was the
only odd one out.

### Repro (failing on `main`)

```ts
await saver.put({ configurable: { thread_id: "1" } }, cp, { source: "update", step: 0, parents: {}, tenant_id: "acme" });
await saver.put({ configurable: { thread_id: "2" } }, cp, { source: "update", step: 0, parents: {}, tenant_id: "globex" });

// expected: 1 result (only thread 1)
// actual on main: 2 results (filter silently ignored)
for await (const t of saver.list({}, { filter: { tenant_id: "acme" } })) { ... }
```

### Fix

- Drop the `validCheckpointMetadataKeys` allow-list (`["source", "step",
"parents"]`).
- Pass the JSON path as a bound parameter (`jsonb(...)->? = ?`) so
arbitrary user keys flow through safely without SQL-injection risk.
Validated `better-sqlite3` supports parameterized JSON path on the `->`
operator.

### Tests

New test `should filter on arbitrary metadata keys, not just
CheckpointMetadata keys` exercises three custom keys (`tenant_id`,
`env`, missing) plus combined filters. **Reverse-verified**: with the
fix reverted the new test fails with `expected 2, actual 3` (filter
silently no-ops).

### Consistency parity

| Checkpointer | Arbitrary metadata filter | Before this PR |
|--------------|---------------------------|----------------|
| MongoDB | ✅ via `metadata_search.{key}` (#2186) | ✅ |
| Postgres | ✅ via `metadata @> $1` | ✅ |
| Redis | ✅ via RediSearch tags | ✅ |
| **SQLite** | ✅ via `jsonb(metadata)->? = ?` (this PR) | ❌ |

## AI Disclosure
This bug was identified through cross-checkpointer code review with AI
assistance, and the fix was validated against the existing test suite
plus a new regression test.

---------

Co-authored-by: Christian Bromann <git@bromann.dev>
 2026-06-08 13:53:12 -07:00
John Kennedy 6e850fbabc fix(langgraph-checkpoint-validation): align node engine with vitest (#2503) 
## Summary
- align checkpoint validation package Node engine with Vitest 4 runtime
requirements
- document the CLI Node requirement
- add missing secret file patterns to .gitignore per commit safety
preflight

## Testing
- Not run per request

---------

Co-authored-by: John Kennedy <jkennedyvz@users.noreply.github.com>
Co-authored-by: Christian Bromann <git@bromann.dev>
 2026-06-08 13:52:39 -07:00
dependabot[bot] 4468bdf512 chore(deps): bump the npm_and_yarn group across 16 directories with 1 update (#2487) 
Bumps the npm_and_yarn group with 1 update in the /internal/bench
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/internal/environment_tests/test-exports-cf directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/checkpoint
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/libs/checkpoint-mongodb directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/libs/checkpoint-postgres directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/checkpoint-redis
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/libs/checkpoint-sqlite directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/libs/checkpoint-validation directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-api
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-cli
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-core
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-cua
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the
/libs/langgraph-supervisor directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-swarm
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/langgraph-ui
directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).
Bumps the npm_and_yarn group with 1 update in the /libs/sdk directory:
[vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).

Updates `vitest` from 3.2.4 to 4.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/vitest-dev/vitest/releases">vitest's
releases</a>.</em></p>
<blockquote>
<h2>v4.1.0</h2>
<p>Vitest 4.1 is out!</p>
<p>This release page lists all changes made to the project during the
4.1 beta. To get a review of all the new features, read our <a
href="https://vitest.dev/blog/vitest-4-1">blog post</a>.</p>
<h3>   🚀 Features</h3>
<ul>
<li>Return a disposable from doMock()  -  by <a
href="https://github.com/kirkwaiblinger"><code>@​kirkwaiblinger</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9332">vitest-dev/vitest#9332</a>
<a href="https://github.com/vitest-dev/vitest/commit/e3e659a96"><!-- raw
HTML omitted -->(e3e65)<!-- raw HTML omitted --></a></li>
<li>Added chai style assertions  -  by <a
href="https://github.com/ronnakamoto"><code>@​ronnakamoto</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/8842">vitest-dev/vitest#8842</a>
<a href="https://github.com/vitest-dev/vitest/commit/841df9ac5"><!-- raw
HTML omitted -->(841df)<!-- raw HTML omitted --></a></li>
<li>Update to sinon/fake-timers v15 and add <code>setTickMode</code> to
timer controls  -  by <a
href="https://github.com/atscott"><code>@​atscott</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8726">vitest-dev/vitest#8726</a>
<a href="https://github.com/vitest-dev/vitest/commit/4b480aaed"><!-- raw
HTML omitted -->(4b480)<!-- raw HTML omitted --></a></li>
<li>Expose matcher types  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9448">vitest-dev/vitest#9448</a>
<a href="https://github.com/vitest-dev/vitest/commit/3e4b913b1"><!-- raw
HTML omitted -->(3e4b9)<!-- raw HTML omitted --></a></li>
<li>Add <code>toTestSpecification</code> to reported tasks  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9464">vitest-dev/vitest#9464</a>
<a href="https://github.com/vitest-dev/vitest/commit/1a4705da9"><!-- raw
HTML omitted -->(1a470)<!-- raw HTML omitted --></a></li>
<li>Show a warning if <code>vi.mock</code> or <code>vi.hoisted</code>
are declared outside of top level of the module  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9387">vitest-dev/vitest#9387</a>
<a href="https://github.com/vitest-dev/vitest/commit/5db54a468"><!-- raw
HTML omitted -->(5db54)<!-- raw HTML omitted --></a></li>
<li>Track and display expectedly failed tests (.fails) in UI and CLI  - 
by <a href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9476">vitest-dev/vitest#9476</a>
<a href="https://github.com/vitest-dev/vitest/commit/77d75fd34"><!-- raw
HTML omitted -->(77d75)<!-- raw HTML omitted --></a></li>
<li>Support tags  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9478">vitest-dev/vitest#9478</a>
<a href="https://github.com/vitest-dev/vitest/commit/de7c8a521"><!-- raw
HTML omitted -->(de7c8)<!-- raw HTML omitted --></a></li>
<li>Implement <code>aroundEach</code> and <code>aroundAll</code> hooks
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9450">vitest-dev/vitest#9450</a>
<a href="https://github.com/vitest-dev/vitest/commit/2a8cb9dc2"><!-- raw
HTML omitted -->(2a8cb)<!-- raw HTML omitted --></a></li>
<li>Stabilize experimental features  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9529">vitest-dev/vitest#9529</a>
<a href="https://github.com/vitest-dev/vitest/commit/b5fd2a16a"><!-- raw
HTML omitted -->(b5fd2)<!-- raw HTML omitted --></a></li>
<li>Accept <code>new</code> or <code>all</code> in <code>--update</code>
flag  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9543">vitest-dev/vitest#9543</a>
<a href="https://github.com/vitest-dev/vitest/commit/a5acf28a5"><!-- raw
HTML omitted -->(a5acf)<!-- raw HTML omitted --></a></li>
<li>Support <code>meta</code> in test options  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9535">vitest-dev/vitest#9535</a>
<a href="https://github.com/vitest-dev/vitest/commit/7d622e3d1"><!-- raw
HTML omitted -->(7d622)<!-- raw HTML omitted --></a></li>
<li>Support type inference with a new <code>test.extend</code> syntax
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9550">vitest-dev/vitest#9550</a>
<a href="https://github.com/vitest-dev/vitest/commit/e53854fcc"><!-- raw
HTML omitted -->(e5385)<!-- raw HTML omitted --></a></li>
<li>Support vite 8 beta, fix type issues in the config with different
vite versions  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9587">vitest-dev/vitest#9587</a>
<a href="https://github.com/vitest-dev/vitest/commit/990281dfd"><!-- raw
HTML omitted -->(99028)<!-- raw HTML omitted --></a></li>
<li>Add assertion helper to hide internal stack traces  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> and
<strong>Claude Opus 4.6</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9594">vitest-dev/vitest#9594</a>
<a href="https://github.com/vitest-dev/vitest/commit/eeb0ae2f8"><!-- raw
HTML omitted -->(eeb0a)<!-- raw HTML omitted --></a></li>
<li>Store failure screenshots using artifacts API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9588">vitest-dev/vitest#9588</a>
<a href="https://github.com/vitest-dev/vitest/commit/24603e3c4"><!-- raw
HTML omitted -->(24603)<!-- raw HTML omitted --></a></li>
<li>Allow <code>vitest list</code> to statically collect tests instead
of running files to collect them  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9630">vitest-dev/vitest#9630</a>
<a href="https://github.com/vitest-dev/vitest/commit/7a8e7fc20"><!-- raw
HTML omitted -->(7a8e7)<!-- raw HTML omitted --></a></li>
<li>Add <code>--detect-async-leaks</code>  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9528">vitest-dev/vitest#9528</a>
<a href="https://github.com/vitest-dev/vitest/commit/c594d4af3"><!-- raw
HTML omitted -->(c594d)<!-- raw HTML omitted --></a></li>
<li>Implement <code>mockThrow</code> and <code>mockThrowOnce</code>  - 
by <a
href="https://github.com/thor-juhasz"><code>@​thor-juhasz</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9512">vitest-dev/vitest#9512</a>
<a href="https://github.com/vitest-dev/vitest/commit/619179fb7"><!-- raw
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<li>Support <code>update: &quot;none&quot;</code> and add docs about
snapshots behavior on CI  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9700">vitest-dev/vitest#9700</a>
<a href="https://github.com/vitest-dev/vitest/commit/05f1854e2"><!-- raw
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<li>Support playwright <code>launchOptions</code> with
<code>connectOptions</code>  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9702">vitest-dev/vitest#9702</a>
<a href="https://github.com/vitest-dev/vitest/commit/f0ff1b2a0"><!-- raw
HTML omitted -->(f0ff1)<!-- raw HTML omitted --></a></li>
<li>Add <code>page/locator.mark</code> API to enhance playwright trace
 -  by <a href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9652">vitest-dev/vitest#9652</a>
<a href="https://github.com/vitest-dev/vitest/commit/d0ee546fe"><!-- raw
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<li><strong>api</strong>:
<ul>
<li>Support tests starting or ending with <code>test</code> in
<code>experimental_parseSpecification</code>  -  by <a
href="https://github.com/jgillick"><code>@​jgillick</code></a> and
<strong>Jeremy Gillick</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9235">vitest-dev/vitest#9235</a>
<a href="https://github.com/vitest-dev/vitest/commit/2f367fad3"><!-- raw
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<li>Add filters to <code>createSpecification</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9336">vitest-dev/vitest#9336</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8e6c7fbf"><!-- raw
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<li>Expose <code>runTestFiles</code> as alternative to
<code>runTestSpecifications</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9443">vitest-dev/vitest#9443</a>
<a href="https://github.com/vitest-dev/vitest/commit/43d761821"><!-- raw
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<li>Add <code>allowWrite</code> and <code>allowExec</code> options to
<code>api</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9350">vitest-dev/vitest#9350</a>
<a href="https://github.com/vitest-dev/vitest/commit/20e00ef78"><!-- raw
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<li>Allow passing down test cases to <code>toTestSpecification</code>
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9627">vitest-dev/vitest#9627</a>
<a href="https://github.com/vitest-dev/vitest/commit/6f17d5ddf"><!-- raw
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</ul>
</li>
<li><strong>browser</strong>:
<ul>
<li>Add <code>userEvent.wheel</code> API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9188">vitest-dev/vitest#9188</a>
<a href="https://github.com/vitest-dev/vitest/commit/660801979"><!-- raw
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<li>Add <code>filterNode</code> option to prettyDOM for filtering
browser assertion error output  -  by <a
href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9475">vitest-dev/vitest#9475</a>
<a href="https://github.com/vitest-dev/vitest/commit/d3220fcd8"><!-- raw
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<li>Support playwright persistent context  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>,
<strong>Claude Opus 4.6</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9229">vitest-dev/vitest#9229</a>
<a href="https://github.com/vitest-dev/vitest/commit/f865d2ba4"><!-- raw
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<li>Added <code>detailsPanelPosition</code> option and button  -  by <a
href="https://github.com/shairez"><code>@​shairez</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9525">vitest-dev/vitest#9525</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8a31147c"><!-- raw
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<li>Use BlazeDiff instead of pixelmatch  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9514">vitest-dev/vitest#9514</a>
<a href="https://github.com/vitest-dev/vitest/commit/309362089"><!-- raw
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<li>Add <code>findElement</code> and enable strict mode in webdriverio
and preview  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9677">vitest-dev/vitest#9677</a>
<a href="https://github.com/vitest-dev/vitest/commit/c3f37721c"><!-- raw
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</ul>
</li>
<li><strong>cli</strong>:
<ul>
<li>Add <a href="https://github.com/bomb"><code>@​bomb</code></a>.sh/tab
completions  -  by <a
href="https://github.com/AmirSa12"><code>@​AmirSa12</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8639">vitest-dev/vitest#8639</a>
<a href="https://github.com/vitest-dev/vitest/commit/200f31704"><!-- raw
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</ul>
</li>
<li><strong>coverage</strong>:
<ul>
<li>Support <code>ignore start/stop</code> ignore hints  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9204">vitest-dev/vitest#9204</a>
<a href="https://github.com/vitest-dev/vitest/commit/e59c94ba6"><!-- raw
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<li>Add <code>coverage.changed</code> option to report only changed
files  -  by <a
href="https://github.com/kykim00"><code>@​kykim00</code></a> and <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9521">vitest-dev/vitest#9521</a>
<a href="https://github.com/vitest-dev/vitest/commit/1d9392c67"><!-- raw
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</ul>
</li>
<li><strong>experimental</strong>:
<ul>
<li>Add <code>onModuleRunner</code> hook to <code>worker.init</code>  - 
by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9286">vitest-dev/vitest#9286</a>
<a href="https://github.com/vitest-dev/vitest/commit/e977f3deb"><!-- raw
HTML omitted -->(e977f)<!-- raw HTML omitted --></a></li>
<li>Option to disable the module runner  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> and
<a href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9210">vitest-dev/vitest#9210</a>
<a href="https://github.com/vitest-dev/vitest/commit/9be6121ee"><!-- raw
HTML omitted -->(9be61)<!-- raw HTML omitted --></a></li>
</ul>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/vitest-dev/vitest/commit/4150b913171bda3971a4a4c47c633c26d0c6ae45"><code>4150b91</code></a>
chore: release v4.1.0</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/1de0aa22dd6311a93546a75a3c58a6be519c1baf"><code>1de0aa2</code></a>
fix: correctly identify concurrent test during static analysis (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9846">#9846</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/c3cac1c1b5a91d921942e9391fbd94841717363f"><code>c3cac1c</code></a>
fix: use isAgent check, not just TTY, for watch mode (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9841">#9841</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/eab68ba2b8ea6f89717c0b885c573579659d7c3b"><code>eab68ba</code></a>
chore(deps): update all non-major dependencies (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9824">#9824</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/031f02a89be34491c441b4da9c4e2bacb7db71df"><code>031f02a</code></a>
fix: allow catch/finally for async assertion (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9827">#9827</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/3e9e096a231fa0ec6475da82e36cbd6fcc9bc8f9"><code>3e9e096</code></a>
feat(reporters): add <code>agent</code> reporter to reduce ai agent
token usage (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9779">#9779</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/0c2c01361a95dd26d0d7fd7bc38bcca8dbc6e5d2"><code>0c2c013</code></a>
chore: release v4.1.0-beta.6</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/8181e06e765f4d043818b244c76795022fa78ff6"><code>8181e06</code></a>
fix: <code>hideSkippedTests</code> should not hide
<code>test.todo</code> (fix <a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9562">#9562</a>)
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9781">#9781</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/a8216b0014b83612e40ef49f919d5293b68717b3"><code>a8216b0</code></a>
fix: manual and redirect mock shouldn't <code>load</code> or
<code>transform</code> original module...</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/689a22a1b8c79595f6f4ae82d2b43c895d7f1c50"><code>689a22a</code></a>
fix(browser): types of <code>getCDPSession</code> and <code>cdp()</code>
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9716">#9716</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/vitest-dev/vitest/commits/v4.1.0/packages/vitest">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new
releaser for vitest since your current version.</p>
</details>
<br />

Updates `vitest` from 0.34.3 to 4.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/vitest-dev/vitest/releases">vitest's
releases</a>.</em></p>
<blockquote>
<h2>v4.1.0</h2>
<p>Vitest 4.1 is out!</p>
<p>This release page lists all changes made to the project during the
4.1 beta. To get a review of all the new features, read our <a
href="https://vitest.dev/blog/vitest-4-1">blog post</a>.</p>
<h3>   🚀 Features</h3>
<ul>
<li>Return a disposable from doMock()  -  by <a
href="https://github.com/kirkwaiblinger"><code>@​kirkwaiblinger</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9332">vitest-dev/vitest#9332</a>
<a href="https://github.com/vitest-dev/vitest/commit/e3e659a96"><!-- raw
HTML omitted -->(e3e65)<!-- raw HTML omitted --></a></li>
<li>Added chai style assertions  -  by <a
href="https://github.com/ronnakamoto"><code>@​ronnakamoto</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/8842">vitest-dev/vitest#8842</a>
<a href="https://github.com/vitest-dev/vitest/commit/841df9ac5"><!-- raw
HTML omitted -->(841df)<!-- raw HTML omitted --></a></li>
<li>Update to sinon/fake-timers v15 and add <code>setTickMode</code> to
timer controls  -  by <a
href="https://github.com/atscott"><code>@​atscott</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8726">vitest-dev/vitest#8726</a>
<a href="https://github.com/vitest-dev/vitest/commit/4b480aaed"><!-- raw
HTML omitted -->(4b480)<!-- raw HTML omitted --></a></li>
<li>Expose matcher types  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9448">vitest-dev/vitest#9448</a>
<a href="https://github.com/vitest-dev/vitest/commit/3e4b913b1"><!-- raw
HTML omitted -->(3e4b9)<!-- raw HTML omitted --></a></li>
<li>Add <code>toTestSpecification</code> to reported tasks  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9464">vitest-dev/vitest#9464</a>
<a href="https://github.com/vitest-dev/vitest/commit/1a4705da9"><!-- raw
HTML omitted -->(1a470)<!-- raw HTML omitted --></a></li>
<li>Show a warning if <code>vi.mock</code> or <code>vi.hoisted</code>
are declared outside of top level of the module  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9387">vitest-dev/vitest#9387</a>
<a href="https://github.com/vitest-dev/vitest/commit/5db54a468"><!-- raw
HTML omitted -->(5db54)<!-- raw HTML omitted --></a></li>
<li>Track and display expectedly failed tests (.fails) in UI and CLI  - 
by <a href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9476">vitest-dev/vitest#9476</a>
<a href="https://github.com/vitest-dev/vitest/commit/77d75fd34"><!-- raw
HTML omitted -->(77d75)<!-- raw HTML omitted --></a></li>
<li>Support tags  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9478">vitest-dev/vitest#9478</a>
<a href="https://github.com/vitest-dev/vitest/commit/de7c8a521"><!-- raw
HTML omitted -->(de7c8)<!-- raw HTML omitted --></a></li>
<li>Implement <code>aroundEach</code> and <code>aroundAll</code> hooks
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9450">vitest-dev/vitest#9450</a>
<a href="https://github.com/vitest-dev/vitest/commit/2a8cb9dc2"><!-- raw
HTML omitted -->(2a8cb)<!-- raw HTML omitted --></a></li>
<li>Stabilize experimental features  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9529">vitest-dev/vitest#9529</a>
<a href="https://github.com/vitest-dev/vitest/commit/b5fd2a16a"><!-- raw
HTML omitted -->(b5fd2)<!-- raw HTML omitted --></a></li>
<li>Accept <code>new</code> or <code>all</code> in <code>--update</code>
flag  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9543">vitest-dev/vitest#9543</a>
<a href="https://github.com/vitest-dev/vitest/commit/a5acf28a5"><!-- raw
HTML omitted -->(a5acf)<!-- raw HTML omitted --></a></li>
<li>Support <code>meta</code> in test options  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9535">vitest-dev/vitest#9535</a>
<a href="https://github.com/vitest-dev/vitest/commit/7d622e3d1"><!-- raw
HTML omitted -->(7d622)<!-- raw HTML omitted --></a></li>
<li>Support type inference with a new <code>test.extend</code> syntax
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9550">vitest-dev/vitest#9550</a>
<a href="https://github.com/vitest-dev/vitest/commit/e53854fcc"><!-- raw
HTML omitted -->(e5385)<!-- raw HTML omitted --></a></li>
<li>Support vite 8 beta, fix type issues in the config with different
vite versions  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9587">vitest-dev/vitest#9587</a>
<a href="https://github.com/vitest-dev/vitest/commit/990281dfd"><!-- raw
HTML omitted -->(99028)<!-- raw HTML omitted --></a></li>
<li>Add assertion helper to hide internal stack traces  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> and
<strong>Claude Opus 4.6</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9594">vitest-dev/vitest#9594</a>
<a href="https://github.com/vitest-dev/vitest/commit/eeb0ae2f8"><!-- raw
HTML omitted -->(eeb0a)<!-- raw HTML omitted --></a></li>
<li>Store failure screenshots using artifacts API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9588">vitest-dev/vitest#9588</a>
<a href="https://github.com/vitest-dev/vitest/commit/24603e3c4"><!-- raw
HTML omitted -->(24603)<!-- raw HTML omitted --></a></li>
<li>Allow <code>vitest list</code> to statically collect tests instead
of running files to collect them  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9630">vitest-dev/vitest#9630</a>
<a href="https://github.com/vitest-dev/vitest/commit/7a8e7fc20"><!-- raw
HTML omitted -->(7a8e7)<!-- raw HTML omitted --></a></li>
<li>Add <code>--detect-async-leaks</code>  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9528">vitest-dev/vitest#9528</a>
<a href="https://github.com/vitest-dev/vitest/commit/c594d4af3"><!-- raw
HTML omitted -->(c594d)<!-- raw HTML omitted --></a></li>
<li>Implement <code>mockThrow</code> and <code>mockThrowOnce</code>  - 
by <a
href="https://github.com/thor-juhasz"><code>@​thor-juhasz</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9512">vitest-dev/vitest#9512</a>
<a href="https://github.com/vitest-dev/vitest/commit/619179fb7"><!-- raw
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<li>Support <code>update: &quot;none&quot;</code> and add docs about
snapshots behavior on CI  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9700">vitest-dev/vitest#9700</a>
<a href="https://github.com/vitest-dev/vitest/commit/05f1854e2"><!-- raw
HTML omitted -->(05f18)<!-- raw HTML omitted --></a></li>
<li>Support playwright <code>launchOptions</code> with
<code>connectOptions</code>  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9702">vitest-dev/vitest#9702</a>
<a href="https://github.com/vitest-dev/vitest/commit/f0ff1b2a0"><!-- raw
HTML omitted -->(f0ff1)<!-- raw HTML omitted --></a></li>
<li>Add <code>page/locator.mark</code> API to enhance playwright trace
 -  by <a href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9652">vitest-dev/vitest#9652</a>
<a href="https://github.com/vitest-dev/vitest/commit/d0ee546fe"><!-- raw
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<li><strong>api</strong>:
<ul>
<li>Support tests starting or ending with <code>test</code> in
<code>experimental_parseSpecification</code>  -  by <a
href="https://github.com/jgillick"><code>@​jgillick</code></a> and
<strong>Jeremy Gillick</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9235">vitest-dev/vitest#9235</a>
<a href="https://github.com/vitest-dev/vitest/commit/2f367fad3"><!-- raw
HTML omitted -->(2f367)<!-- raw HTML omitted --></a></li>
<li>Add filters to <code>createSpecification</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9336">vitest-dev/vitest#9336</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8e6c7fbf"><!-- raw
HTML omitted -->(c8e6c)<!-- raw HTML omitted --></a></li>
<li>Expose <code>runTestFiles</code> as alternative to
<code>runTestSpecifications</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9443">vitest-dev/vitest#9443</a>
<a href="https://github.com/vitest-dev/vitest/commit/43d761821"><!-- raw
HTML omitted -->(43d76)<!-- raw HTML omitted --></a></li>
<li>Add <code>allowWrite</code> and <code>allowExec</code> options to
<code>api</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9350">vitest-dev/vitest#9350</a>
<a href="https://github.com/vitest-dev/vitest/commit/20e00ef78"><!-- raw
HTML omitted -->(20e00)<!-- raw HTML omitted --></a></li>
<li>Allow passing down test cases to <code>toTestSpecification</code>
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9627">vitest-dev/vitest#9627</a>
<a href="https://github.com/vitest-dev/vitest/commit/6f17d5ddf"><!-- raw
HTML omitted -->(6f17d)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>browser</strong>:
<ul>
<li>Add <code>userEvent.wheel</code> API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9188">vitest-dev/vitest#9188</a>
<a href="https://github.com/vitest-dev/vitest/commit/660801979"><!-- raw
HTML omitted -->(66080)<!-- raw HTML omitted --></a></li>
<li>Add <code>filterNode</code> option to prettyDOM for filtering
browser assertion error output  -  by <a
href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9475">vitest-dev/vitest#9475</a>
<a href="https://github.com/vitest-dev/vitest/commit/d3220fcd8"><!-- raw
HTML omitted -->(d3220)<!-- raw HTML omitted --></a></li>
<li>Support playwright persistent context  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>,
<strong>Claude Opus 4.6</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9229">vitest-dev/vitest#9229</a>
<a href="https://github.com/vitest-dev/vitest/commit/f865d2ba4"><!-- raw
HTML omitted -->(f865d)<!-- raw HTML omitted --></a></li>
<li>Added <code>detailsPanelPosition</code> option and button  -  by <a
href="https://github.com/shairez"><code>@​shairez</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9525">vitest-dev/vitest#9525</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8a31147c"><!-- raw
HTML omitted -->(c8a31)<!-- raw HTML omitted --></a></li>
<li>Use BlazeDiff instead of pixelmatch  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9514">vitest-dev/vitest#9514</a>
<a href="https://github.com/vitest-dev/vitest/commit/309362089"><!-- raw
HTML omitted -->(30936)<!-- raw HTML omitted --></a></li>
<li>Add <code>findElement</code> and enable strict mode in webdriverio
and preview  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9677">vitest-dev/vitest#9677</a>
<a href="https://github.com/vitest-dev/vitest/commit/c3f37721c"><!-- raw
HTML omitted -->(c3f37)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>cli</strong>:
<ul>
<li>Add <a href="https://github.com/bomb"><code>@​bomb</code></a>.sh/tab
completions  -  by <a
href="https://github.com/AmirSa12"><code>@​AmirSa12</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8639">vitest-dev/vitest#8639</a>
<a href="https://github.com/vitest-dev/vitest/commit/200f31704"><!-- raw
HTML omitted -->(200f3)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>coverage</strong>:
<ul>
<li>Support <code>ignore start/stop</code> ignore hints  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9204">vitest-dev/vitest#9204</a>
<a href="https://github.com/vitest-dev/vitest/commit/e59c94ba6"><!-- raw
HTML omitted -->(e59c9)<!-- raw HTML omitted --></a></li>
<li>Add <code>coverage.changed</code> option to report only changed
files  -  by <a
href="https://github.com/kykim00"><code>@​kykim00</code></a> and <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9521">vitest-dev/vitest#9521</a>
<a href="https://github.com/vitest-dev/vitest/commit/1d9392c67"><!-- raw
HTML omitted -->(1d939)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>experimental</strong>:
<ul>
<li>Add <code>onModuleRunner</code> hook to <code>worker.init</code>  - 
by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9286">vitest-dev/vitest#9286</a>
<a href="https://github.com/vitest-dev/vitest/commit/e977f3deb"><!-- raw
HTML omitted -->(e977f)<!-- raw HTML omitted --></a></li>
<li>Option to disable the module runner  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> and
<a href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9210">vitest-dev/vitest#9210</a>
<a href="https://github.com/vitest-dev/vitest/commit/9be6121ee"><!-- raw
HTML omitted -->(9be61)<!-- raw HTML omitted --></a></li>
</ul>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/vitest-dev/vitest/commit/4150b913171bda3971a4a4c47c633c26d0c6ae45"><code>4150b91</code></a>
chore: release v4.1.0</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/1de0aa22dd6311a93546a75a3c58a6be519c1baf"><code>1de0aa2</code></a>
fix: correctly identify concurrent test during static analysis (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9846">#9846</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/c3cac1c1b5a91d921942e9391fbd94841717363f"><code>c3cac1c</code></a>
fix: use isAgent check, not just TTY, for watch mode (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9841">#9841</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/eab68ba2b8ea6f89717c0b885c573579659d7c3b"><code>eab68ba</code></a>
chore(deps): update all non-major dependencies (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9824">#9824</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/031f02a89be34491c441b4da9c4e2bacb7db71df"><code>031f02a</code></a>
fix: allow catch/finally for async assertion (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9827">#9827</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/3e9e096a231fa0ec6475da82e36cbd6fcc9bc8f9"><code>3e9e096</code></a>
feat(reporters): add <code>agent</code> reporter to reduce ai agent
token usage (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9779">#9779</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/0c2c01361a95dd26d0d7fd7bc38bcca8dbc6e5d2"><code>0c2c013</code></a>
chore: release v4.1.0-beta.6</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/8181e06e765f4d043818b244c76795022fa78ff6"><code>8181e06</code></a>
fix: <code>hideSkippedTests</code> should not hide
<code>test.todo</code> (fix <a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9562">#9562</a>)
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9781">#9781</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/a8216b0014b83612e40ef49f919d5293b68717b3"><code>a8216b0</code></a>
fix: manual and redirect mock shouldn't <code>load</code> or
<code>transform</code> original module...</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/689a22a1b8c79595f6f4ae82d2b43c895d7f1c50"><code>689a22a</code></a>
fix(browser): types of <code>getCDPSession</code> and <code>cdp()</code>
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9716">#9716</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/vitest-dev/vitest/commits/v4.1.0/packages/vitest">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new
releaser for vitest since your current version.</p>
</details>
<br />

Updates `vitest` from 0.34.3 to 4.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/vitest-dev/vitest/releases">vitest's
releases</a>.</em></p>
<blockquote>
<h2>v4.1.0</h2>
<p>Vitest 4.1 is out!</p>
<p>This release page lists all changes made to the project during the
4.1 beta. To get a review of all the new features, read our <a
href="https://vitest.dev/blog/vitest-4-1">blog post</a>.</p>
<h3>   🚀 Features</h3>
<ul>
<li>Return a disposable from doMock()  -  by <a
href="https://github.com/kirkwaiblinger"><code>@​kirkwaiblinger</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9332">vitest-dev/vitest#9332</a>
<a href="https://github.com/vitest-dev/vitest/commit/e3e659a96"><!-- raw
HTML omitted -->(e3e65)<!-- raw HTML omitted --></a></li>
<li>Added chai style assertions  -  by <a
href="https://github.com/ronnakamoto"><code>@​ronnakamoto</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/8842">vitest-dev/vitest#8842</a>
<a href="https://github.com/vitest-dev/vitest/commit/841df9ac5"><!-- raw
HTML omitted -->(841df)<!-- raw HTML omitted --></a></li>
<li>Update to sinon/fake-timers v15 and add <code>setTickMode</code> to
timer controls  -  by <a
href="https://github.com/atscott"><code>@​atscott</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8726">vitest-dev/vitest#8726</a>
<a href="https://github.com/vitest-dev/vitest/commit/4b480aaed"><!-- raw
HTML omitted -->(4b480)<!-- raw HTML omitted --></a></li>
<li>Expose matcher types  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9448">vitest-dev/vitest#9448</a>
<a href="https://github.com/vitest-dev/vitest/commit/3e4b913b1"><!-- raw
HTML omitted -->(3e4b9)<!-- raw HTML omitted --></a></li>
<li>Add <code>toTestSpecification</code> to reported tasks  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9464">vitest-dev/vitest#9464</a>
<a href="https://github.com/vitest-dev/vitest/commit/1a4705da9"><!-- raw
HTML omitted -->(1a470)<!-- raw HTML omitted --></a></li>
<li>Show a warning if <code>vi.mock</code> or <code>vi.hoisted</code>
are declared outside of top level of the module  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9387">vitest-dev/vitest#9387</a>
<a href="https://github.com/vitest-dev/vitest/commit/5db54a468"><!-- raw
HTML omitted -->(5db54)<!-- raw HTML omitted --></a></li>
<li>Track and display expectedly failed tests (.fails) in UI and CLI  - 
by <a href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9476">vitest-dev/vitest#9476</a>
<a href="https://github.com/vitest-dev/vitest/commit/77d75fd34"><!-- raw
HTML omitted -->(77d75)<!-- raw HTML omitted --></a></li>
<li>Support tags  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9478">vitest-dev/vitest#9478</a>
<a href="https://github.com/vitest-dev/vitest/commit/de7c8a521"><!-- raw
HTML omitted -->(de7c8)<!-- raw HTML omitted --></a></li>
<li>Implement <code>aroundEach</code> and <code>aroundAll</code> hooks
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9450">vitest-dev/vitest#9450</a>
<a href="https://github.com/vitest-dev/vitest/commit/2a8cb9dc2"><!-- raw
HTML omitted -->(2a8cb)<!-- raw HTML omitted --></a></li>
<li>Stabilize experimental features  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9529">vitest-dev/vitest#9529</a>
<a href="https://github.com/vitest-dev/vitest/commit/b5fd2a16a"><!-- raw
HTML omitted -->(b5fd2)<!-- raw HTML omitted --></a></li>
<li>Accept <code>new</code> or <code>all</code> in <code>--update</code>
flag  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9543">vitest-dev/vitest#9543</a>
<a href="https://github.com/vitest-dev/vitest/commit/a5acf28a5"><!-- raw
HTML omitted -->(a5acf)<!-- raw HTML omitted --></a></li>
<li>Support <code>meta</code> in test options  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9535">vitest-dev/vitest#9535</a>
<a href="https://github.com/vitest-dev/vitest/commit/7d622e3d1"><!-- raw
HTML omitted -->(7d622)<!-- raw HTML omitted --></a></li>
<li>Support type inference with a new <code>test.extend</code> syntax
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9550">vitest-dev/vitest#9550</a>
<a href="https://github.com/vitest-dev/vitest/commit/e53854fcc"><!-- raw
HTML omitted -->(e5385)<!-- raw HTML omitted --></a></li>
<li>Support vite 8 beta, fix type issues in the config with different
vite versions  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9587">vitest-dev/vitest#9587</a>
<a href="https://github.com/vitest-dev/vitest/commit/990281dfd"><!-- raw
HTML omitted -->(99028)<!-- raw HTML omitted --></a></li>
<li>Add assertion helper to hide internal stack traces  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> and
<strong>Claude Opus 4.6</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9594">vitest-dev/vitest#9594</a>
<a href="https://github.com/vitest-dev/vitest/commit/eeb0ae2f8"><!-- raw
HTML omitted -->(eeb0a)<!-- raw HTML omitted --></a></li>
<li>Store failure screenshots using artifacts API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9588">vitest-dev/vitest#9588</a>
<a href="https://github.com/vitest-dev/vitest/commit/24603e3c4"><!-- raw
HTML omitted -->(24603)<!-- raw HTML omitted --></a></li>
<li>Allow <code>vitest list</code> to statically collect tests instead
of running files to collect them  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9630">vitest-dev/vitest#9630</a>
<a href="https://github.com/vitest-dev/vitest/commit/7a8e7fc20"><!-- raw
HTML omitted -->(7a8e7)<!-- raw HTML omitted --></a></li>
<li>Add <code>--detect-async-leaks</code>  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9528">vitest-dev/vitest#9528</a>
<a href="https://github.com/vitest-dev/vitest/commit/c594d4af3"><!-- raw
HTML omitted -->(c594d)<!-- raw HTML omitted --></a></li>
<li>Implement <code>mockThrow</code> and <code>mockThrowOnce</code>  - 
by <a
href="https://github.com/thor-juhasz"><code>@​thor-juhasz</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9512">vitest-dev/vitest#9512</a>
<a href="https://github.com/vitest-dev/vitest/commit/619179fb7"><!-- raw
HTML omitted -->(61917)<!-- raw HTML omitted --></a></li>
<li>Support <code>update: &quot;none&quot;</code> and add docs about
snapshots behavior on CI  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9700">vitest-dev/vitest#9700</a>
<a href="https://github.com/vitest-dev/vitest/commit/05f1854e2"><!-- raw
HTML omitted -->(05f18)<!-- raw HTML omitted --></a></li>
<li>Support playwright <code>launchOptions</code> with
<code>connectOptions</code>  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9702">vitest-dev/vitest#9702</a>
<a href="https://github.com/vitest-dev/vitest/commit/f0ff1b2a0"><!-- raw
HTML omitted -->(f0ff1)<!-- raw HTML omitted --></a></li>
<li>Add <code>page/locator.mark</code> API to enhance playwright trace
 -  by <a href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9652">vitest-dev/vitest#9652</a>
<a href="https://github.com/vitest-dev/vitest/commit/d0ee546fe"><!-- raw
HTML omitted -->(d0ee5)<!-- raw HTML omitted --></a></li>
<li><strong>api</strong>:
<ul>
<li>Support tests starting or ending with <code>test</code> in
<code>experimental_parseSpecification</code>  -  by <a
href="https://github.com/jgillick"><code>@​jgillick</code></a> and
<strong>Jeremy Gillick</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9235">vitest-dev/vitest#9235</a>
<a href="https://github.com/vitest-dev/vitest/commit/2f367fad3"><!-- raw
HTML omitted -->(2f367)<!-- raw HTML omitted --></a></li>
<li>Add filters to <code>createSpecification</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9336">vitest-dev/vitest#9336</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8e6c7fbf"><!-- raw
HTML omitted -->(c8e6c)<!-- raw HTML omitted --></a></li>
<li>Expose <code>runTestFiles</code> as alternative to
<code>runTestSpecifications</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9443">vitest-dev/vitest#9443</a>
<a href="https://github.com/vitest-dev/vitest/commit/43d761821"><!-- raw
HTML omitted -->(43d76)<!-- raw HTML omitted --></a></li>
<li>Add <code>allowWrite</code> and <code>allowExec</code> options to
<code>api</code>  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9350">vitest-dev/vitest#9350</a>
<a href="https://github.com/vitest-dev/vitest/commit/20e00ef78"><!-- raw
HTML omitted -->(20e00)<!-- raw HTML omitted --></a></li>
<li>Allow passing down test cases to <code>toTestSpecification</code>
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9627">vitest-dev/vitest#9627</a>
<a href="https://github.com/vitest-dev/vitest/commit/6f17d5ddf"><!-- raw
HTML omitted -->(6f17d)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>browser</strong>:
<ul>
<li>Add <code>userEvent.wheel</code> API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9188">vitest-dev/vitest#9188</a>
<a href="https://github.com/vitest-dev/vitest/commit/660801979"><!-- raw
HTML omitted -->(66080)<!-- raw HTML omitted --></a></li>
<li>Add <code>filterNode</code> option to prettyDOM for filtering
browser assertion error output  -  by <a
href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9475">vitest-dev/vitest#9475</a>
<a href="https://github.com/vitest-dev/vitest/commit/d3220fcd8"><!-- raw
HTML omitted -->(d3220)<!-- raw HTML omitted --></a></li>
<li>Support playwright persistent context  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a>,
<strong>Claude Opus 4.6</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9229">vitest-dev/vitest#9229</a>
<a href="https://github.com/vitest-dev/vitest/commit/f865d2ba4"><!-- raw
HTML omitted -->(f865d)<!-- raw HTML omitted --></a></li>
<li>Added <code>detailsPanelPosition</code> option and button  -  by <a
href="https://github.com/shairez"><code>@​shairez</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9525">vitest-dev/vitest#9525</a>
<a href="https://github.com/vitest-dev/vitest/commit/c8a31147c"><!-- raw
HTML omitted -->(c8a31)<!-- raw HTML omitted --></a></li>
<li>Use BlazeDiff instead of pixelmatch  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9514">vitest-dev/vitest#9514</a>
<a href="https://github.com/vitest-dev/vitest/commit/309362089"><!-- raw
HTML omitted -->(30936)<!-- raw HTML omitted --></a></li>
<li>Add <code>findElement</code> and enable strict mode in webdriverio
and preview  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9677">vitest-dev/vitest#9677</a>
<a href="https://github.com/vitest-dev/vitest/commit/c3f37721c"><!-- raw
HTML omitted -->(c3f37)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>cli</strong>:
<ul>
<li>Add <a href="https://github.com/bomb"><code>@​bomb</code></a>.sh/tab
completions  -  by <a
href="https://github.com/AmirSa12"><code>@​AmirSa12</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8639">vitest-dev/vitest#8639</a>
<a href="https://github.com/vitest-dev/vitest/commit/200f31704"><!-- raw
HTML omitted -->(200f3)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>coverage</strong>:
<ul>
<li>Support <code>ignore start/stop</code> ignore hints  -  by <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9204">vitest-dev/vitest#9204</a>
<a href="https://github.com/vitest-dev/vitest/commit/e59c94ba6"><!-- raw
HTML omitted -->(e59c9)<!-- raw HTML omitted --></a></li>
<li>Add <code>coverage.changed</code> option to report only changed
files  -  by <a
href="https://github.com/kykim00"><code>@​kykim00</code></a> and <a
href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9521">vitest-dev/vitest#9521</a>
<a href="https://github.com/vitest-dev/vitest/commit/1d9392c67"><!-- raw
HTML omitted -->(1d939)<!-- raw HTML omitted --></a></li>
</ul>
</li>
<li><strong>experimental</strong>:
<ul>
<li>Add <code>onModuleRunner</code> hook to <code>worker.init</code>  - 
by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9286">vitest-dev/vitest#9286</a>
<a href="https://github.com/vitest-dev/vitest/commit/e977f3deb"><!-- raw
HTML omitted -->(e977f)<!-- raw HTML omitted --></a></li>
<li>Option to disable the module runner  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> and
<a href="https://github.com/AriPerkkio"><code>@​AriPerkkio</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9210">vitest-dev/vitest#9210</a>
<a href="https://github.com/vitest-dev/vitest/commit/9be6121ee"><!-- raw
HTML omitted -->(9be61)<!-- raw HTML omitted --></a></li>
</ul>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/vitest-dev/vitest/commit/4150b913171bda3971a4a4c47c633c26d0c6ae45"><code>4150b91</code></a>
chore: release v4.1.0</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/1de0aa22dd6311a93546a75a3c58a6be519c1baf"><code>1de0aa2</code></a>
fix: correctly identify concurrent test during static analysis (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9846">#9846</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/c3cac1c1b5a91d921942e9391fbd94841717363f"><code>c3cac1c</code></a>
fix: use isAgent check, not just TTY, for watch mode (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9841">#9841</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/eab68ba2b8ea6f89717c0b885c573579659d7c3b"><code>eab68ba</code></a>
chore(deps): update all non-major dependencies (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9824">#9824</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/031f02a89be34491c441b4da9c4e2bacb7db71df"><code>031f02a</code></a>
fix: allow catch/finally for async assertion (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9827">#9827</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/3e9e096a231fa0ec6475da82e36cbd6fcc9bc8f9"><code>3e9e096</code></a>
feat(reporters): add <code>agent</code> reporter to reduce ai agent
token usage (<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9779">#9779</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/0c2c01361a95dd26d0d7fd7bc38bcca8dbc6e5d2"><code>0c2c013</code></a>
chore: release v4.1.0-beta.6</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/8181e06e765f4d043818b244c76795022fa78ff6"><code>8181e06</code></a>
fix: <code>hideSkippedTests</code> should not hide
<code>test.todo</code> (fix <a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9562">#9562</a>)
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9781">#9781</a>)</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/a8216b0014b83612e40ef49f919d5293b68717b3"><code>a8216b0</code></a>
fix: manual and redirect mock shouldn't <code>load</code> or
<code>transform</code> original module...</li>
<li><a
href="https://github.com/vitest-dev/vitest/commit/689a22a1b8c79595f6f4ae82d2b43c895d7f1c50"><code>689a22a</code></a>
fix(browser): types of <code>getCDPSession</code> and <code>cdp()</code>
(<a
href="https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest/issues/9716">#9716</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/vitest-dev/vitest/commits/v4.1.0/packages/vitest">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new
releaser for vitest since your current version.</p>
</details>
<br />

Updates `vitest` from 0.34.3 to 4.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/vitest-dev/vitest/releases">vitest's
releases</a>.</em></p>
<blockquote>
<h2>v4.1.0</h2>
<p>Vitest 4.1 is out!</p>
<p>This release page lists all changes made to the project during the
4.1 beta. To get a review of all the new features, read our <a
href="https://vitest.dev/blog/vitest-4-1">blog post</a>.</p>
<h3>   🚀 Features</h3>
<ul>
<li>Return a disposable from doMock()  -  by <a
href="https://github.com/kirkwaiblinger"><code>@​kirkwaiblinger</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9332">vitest-dev/vitest#9332</a>
<a href="https://github.com/vitest-dev/vitest/commit/e3e659a96"><!-- raw
HTML omitted -->(e3e65)<!-- raw HTML omitted --></a></li>
<li>Added chai style assertions  -  by <a
href="https://github.com/ronnakamoto"><code>@​ronnakamoto</code></a> and
<a href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a>
in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/8842">vitest-dev/vitest#8842</a>
<a href="https://github.com/vitest-dev/vitest/commit/841df9ac5"><!-- raw
HTML omitted -->(841df)<!-- raw HTML omitted --></a></li>
<li>Update to sinon/fake-timers v15 and add <code>setTickMode</code> to
timer controls  -  by <a
href="https://github.com/atscott"><code>@​atscott</code></a> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/8726">vitest-dev/vitest#8726</a>
<a href="https://github.com/vitest-dev/vitest/commit/4b480aaed"><!-- raw
HTML omitted -->(4b480)<!-- raw HTML omitted --></a></li>
<li>Expose matcher types  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9448">vitest-dev/vitest#9448</a>
<a href="https://github.com/vitest-dev/vitest/commit/3e4b913b1"><!-- raw
HTML omitted -->(3e4b9)<!-- raw HTML omitted --></a></li>
<li>Add <code>toTestSpecification</code> to reported tasks  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9464">vitest-dev/vitest#9464</a>
<a href="https://github.com/vitest-dev/vitest/commit/1a4705da9"><!-- raw
HTML omitted -->(1a470)<!-- raw HTML omitted --></a></li>
<li>Show a warning if <code>vi.mock</code> or <code>vi.hoisted</code>
are declared outside of top level of the module  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9387">vitest-dev/vitest#9387</a>
<a href="https://github.com/vitest-dev/vitest/commit/5db54a468"><!-- raw
HTML omitted -->(5db54)<!-- raw HTML omitted --></a></li>
<li>Track and display expectedly failed tests (.fails) in UI and CLI  - 
by <a href="https://github.com/Copilot"><code>@​Copilot</code></a>,
<strong>sheremet-va</strong> and <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9476">vitest-dev/vitest#9476</a>
<a href="https://github.com/vitest-dev/vitest/commit/77d75fd34"><!-- raw
HTML omitted -->(77d75)<!-- raw HTML omitted --></a></li>
<li>Support tags  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9478">vitest-dev/vitest#9478</a>
<a href="https://github.com/vitest-dev/vitest/commit/de7c8a521"><!-- raw
HTML omitted -->(de7c8)<!-- raw HTML omitted --></a></li>
<li>Implement <code>aroundEach</code> and <code>aroundAll</code> hooks
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9450">vitest-dev/vitest#9450</a>
<a href="https://github.com/vitest-dev/vitest/commit/2a8cb9dc2"><!-- raw
HTML omitted -->(2a8cb)<!-- raw HTML omitted --></a></li>
<li>Stabilize experimental features  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9529">vitest-dev/vitest#9529</a>
<a href="https://github.com/vitest-dev/vitest/commit/b5fd2a16a"><!-- raw
HTML omitted -->(b5fd2)<!-- raw HTML omitted --></a></li>
<li>Accept <code>new</code> or <code>all</code> in <code>--update</code>
flag  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9543">vitest-dev/vitest#9543</a>
<a href="https://github.com/vitest-dev/vitest/commit/a5acf28a5"><!-- raw
HTML omitted -->(a5acf)<!-- raw HTML omitted --></a></li>
<li>Support <code>meta</code> in test options  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9535">vitest-dev/vitest#9535</a>
<a href="https://github.com/vitest-dev/vitest/commit/7d622e3d1"><!-- raw
HTML omitted -->(7d622)<!-- raw HTML omitted --></a></li>
<li>Support type inference with a new <code>test.extend</code> syntax
 -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9550">vitest-dev/vitest#9550</a>
<a href="https://github.com/vitest-dev/vitest/commit/e53854fcc"><!-- raw
HTML omitted -->(e5385)<!-- raw HTML omitted --></a></li>
<li>Support vite 8 beta, fix type issues in the config with different
vite versions  -  by <a
href="https://github.com/sheremet-va"><code>@​sheremet-va</code></a> in
<a
href="https://redirect.github.com/vitest-dev/vitest/issues/9587">vitest-dev/vitest#9587</a>
<a href="https://github.com/vitest-dev/vitest/commit/990281dfd"><!-- raw
HTML omitted -->(99028)<!-- raw HTML omitted --></a></li>
<li>Add assertion helper to hide internal stack traces  -  by <a
href="https://github.com/hi-ogawa"><code>@​hi-ogawa</code></a> and
<strong>Claude Opus 4.6</strong> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9594">vitest-dev/vitest#9594</a>
<a href="https://github.com/vitest-dev/vitest/commit/eeb0ae2f8"><!-- raw
HTML omitted -->(eeb0a)<!-- raw HTML omitted --></a></li>
<li>Store failure screenshots using artifacts API  -  by <a
href="https://github.com/macarie"><code>@​macarie</code></a> in <a
href="https://redirect.github.com/vitest-dev/vitest/issues/9588">vitest-dev/vitest#9588</a>
<a href="https://github.com/vitest-dev/vitest/commit/24603e3c4"><!-- raw
HTML omitted -->(24603)...

_Description has been truncated_

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: John Kennedy <jkennedyvz@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-07 14:10:31 -07:00
github-actions[bot] 133d0bd52e chore: version packages (#2501) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-sdk@1.9.18

### Patch Changes

- [#2500](https://github.com/langchain-ai/langgraphjs/pull/2500)
[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): resume useChannel subscriptions across serial runs

Enable `resumeOnPause` on the channel projection so `useChannel` keeps
accumulating events across prompts on the same thread. Clarify selector
docs and JSDoc: `useChannel` for the full event stream, `useExtension`
    for the latest payload.

## @langchain/angular@1.0.18

### Patch Changes

- [#2500](https://github.com/langchain-ai/langgraphjs/pull/2500)
[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): resume useChannel subscriptions across serial runs

Enable `resumeOnPause` on the channel projection so `useChannel` keeps
accumulating events across prompts on the same thread. Clarify selector
docs and JSDoc: `useChannel` for the full event stream, `useExtension`
    for the latest payload.

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18

## @langchain/react@1.0.18

### Patch Changes

- [#2500](https://github.com/langchain-ai/langgraphjs/pull/2500)
[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): resume useChannel subscriptions across serial runs

Enable `resumeOnPause` on the channel projection so `useChannel` keeps
accumulating events across prompts on the same thread. Clarify selector
docs and JSDoc: `useChannel` for the full event stream, `useExtension`
    for the latest payload.

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18

## @langchain/svelte@1.0.18

### Patch Changes

- [#2500](https://github.com/langchain-ai/langgraphjs/pull/2500)
[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): resume useChannel subscriptions across serial runs

Enable `resumeOnPause` on the channel projection so `useChannel` keeps
accumulating events across prompts on the same thread. Clarify selector
docs and JSDoc: `useChannel` for the full event stream, `useExtension`
    for the latest payload.

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18

## @langchain/vue@1.0.18

### Patch Changes

- [#2500](https://github.com/langchain-ai/langgraphjs/pull/2500)
[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): resume useChannel subscriptions across serial runs

Enable `resumeOnPause` on the channel projection so `useChannel` keeps
accumulating events across prompts on the same thread. Clarify selector
docs and JSDoc: `useChannel` for the full event stream, `useExtension`
    for the latest payload.

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18

## @example/ai-elements@0.1.33

### Patch Changes

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/react@1.0.18

## @examples/assistant-ui-claude@0.1.33

### Patch Changes

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/react@1.0.18

## @examples/ui-angular@0.0.43

### Patch Changes

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18
    -   @langchain/angular@1.0.18

## @examples/ui-multimodal@0.0.19

### Patch Changes

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/react@1.0.18

## @examples/ui-react@0.0.19

### Patch Changes

- Updated dependencies
\[[`f67772f`](https://github.com/langchain-ai/langgraphjs/commit/f67772ff3f7ac13d81576d395d7529de4eb4390b)]:
    -   @langchain/langgraph-sdk@1.9.18
    -   @langchain/react@1.0.18

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.18 @langchain/langgraph-sdk@1.9.18 @langchain/react@1.0.18 @langchain/svelte@1.0.18 @langchain/vue@1.0.18 		2026-06-06 15:34:59 -07:00
Christian Bromann f67772ff3f fix(sdk): resume useChannel subscriptions across serial runs (#2500) 
## Summary
- Fix `channelProjection` to pass `resumeOnPause: true`, matching
`extensionProjection`, so `useChannel` continues receiving events after
each run's terminal lifecycle event instead of going silent after the
first prompt on a thread.
- Add a unit test that simulates a paused subscription resuming with a
second event batch, and a React browser integration test asserting
`useChannel` event count grows across two serial submits (3 → 6).
- Update selector JSDoc and `selectors.md` / `selector-composables.md`
across React, Vue, Svelte, and Angular to document the complementary
roles: `useChannel` = full bounded event history across runs;
`useExtension` = latest payload only.
 2026-06-06 15:29:59 -07:00
github-actions[bot] c418781870 chore: version packages (#2495) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-api@1.2.5

### Patch Changes

-
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(langgraph): forward named custom stream channels consistently

Forward remote `StreamChannel` emissions as `custom:<name>` protocol
events and normalize them back to custom-channel payloads in the API
session. This aligns JavaScript stream-channel forwarding with the
protocol subscription shape used by remote clients, so `custom:<name>`
subscriptions receive extension channel data consistently.

-   Updated dependencies \[]:
    -   @langchain/langgraph-ui@1.2.5

## @langchain/langgraph-cli@1.2.5

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f)]:
    -   @langchain/langgraph-api@1.2.5

## @langchain/langgraph@1.3.6

### Patch Changes

-
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(langgraph): forward named custom stream channels consistently

Forward remote `StreamChannel` emissions as `custom:<name>` protocol
events and normalize them back to custom-channel payloads in the API
session. This aligns JavaScript stream-channel forwarding with the
protocol subscription shape used by remote clients, so `custom:<name>`
subscriptions receive extension channel data consistently.

- Updated dependencies
\[[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph-sdk@1.9.17

## @langchain/langgraph-sdk@1.9.17

### Patch Changes

- [#2494](https://github.com/langchain-ai/langgraphjs/pull/2494)
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): revive automatic optimistic submit echo

Echo `submit()` input into `values` / `messages` immediately with
client-side
id minting and id-based reconciliation as the server streams back.
Expose
per-message `optimisticStatus` via message metadata (`pending` → `sent`
/
`failed`), shallow-merge non-message keys with rollback when no `values`
arrive, and add an `optimistic: false` hook opt-out. Plumb through
React,
    Vue, Svelte, and Angular with browser e2e coverage.

-
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): coalesce duplicate thread read requests

Coalesce concurrent identical `threads.getState()` and
`threads.getHistory()` reads within the SDK client so transient remounts
do not issue duplicate hydrate requests. Request identity includes the
prepared URL, body, method, and headers, and coalescing is skipped for
caller-provided abort signals, raw response reads, and `onRequest` hooks
to preserve auth and cancellation isolation.

- [#2497](https://github.com/langchain-ai/langgraphjs/pull/2497)
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconcile subagents and subgraphs on thread reconnect

Seed deep-agent subagent cards from checkpoint messages and subgraph
hosts from a single bounded `getHistory` read during `hydrate()`, so
parallel fan-out discovery reappears immediately on refresh instead of
waiting for SSE replay. Subagent execution namespaces are promoted
through the existing guarded discovery state machine (bulk at hydrate,
lazily per opened card via the selector layer). The getHistory cost is
O(1) in requests regardless of fan-out width.

## @langchain/angular@1.0.17

### Patch Changes

- [#2494](https://github.com/langchain-ai/langgraphjs/pull/2494)
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): revive automatic optimistic submit echo

Echo `submit()` input into `values` / `messages` immediately with
client-side
id minting and id-based reconciliation as the server streams back.
Expose
per-message `optimisticStatus` via message metadata (`pending` → `sent`
/
`failed`), shallow-merge non-message keys with rollback when no `values`
arrive, and add an `optimistic: false` hook opt-out. Plumb through
React,
    Vue, Svelte, and Angular with browser e2e coverage.

- [#2497](https://github.com/langchain-ai/langgraphjs/pull/2497)
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconcile subagents and subgraphs on thread reconnect

Seed deep-agent subagent cards from checkpoint messages and subgraph
hosts from a single bounded `getHistory` read during `hydrate()`, so
parallel fan-out discovery reappears immediately on refresh instead of
waiting for SSE replay. Subagent execution namespaces are promoted
through the existing guarded discovery state machine (bulk at hydrate,
lazily per opened card via the selector layer). The getHistory cost is
O(1) in requests regardless of fan-out width.

- Updated dependencies
\[[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph-sdk@1.9.17

## @langchain/react@1.0.17

### Patch Changes

- [#2494](https://github.com/langchain-ai/langgraphjs/pull/2494)
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): revive automatic optimistic submit echo

Echo `submit()` input into `values` / `messages` immediately with
client-side
id minting and id-based reconciliation as the server streams back.
Expose
per-message `optimisticStatus` via message metadata (`pending` → `sent`
/
`failed`), shallow-merge non-message keys with rollback when no `values`
arrive, and add an `optimistic: false` hook opt-out. Plumb through
React,
    Vue, Svelte, and Angular with browser e2e coverage.

- [#2497](https://github.com/langchain-ai/langgraphjs/pull/2497)
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconcile subagents and subgraphs on thread reconnect

Seed deep-agent subagent cards from checkpoint messages and subgraph
hosts from a single bounded `getHistory` read during `hydrate()`, so
parallel fan-out discovery reappears immediately on refresh instead of
waiting for SSE replay. Subagent execution namespaces are promoted
through the existing guarded discovery state machine (bulk at hydrate,
lazily per opened card via the selector layer). The getHistory cost is
O(1) in requests regardless of fan-out width.

- Updated dependencies
\[[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph-sdk@1.9.17

## @langchain/svelte@1.0.17

### Patch Changes

- [#2494](https://github.com/langchain-ai/langgraphjs/pull/2494)
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): revive automatic optimistic submit echo

Echo `submit()` input into `values` / `messages` immediately with
client-side
id minting and id-based reconciliation as the server streams back.
Expose
per-message `optimisticStatus` via message metadata (`pending` → `sent`
/
`failed`), shallow-merge non-message keys with rollback when no `values`
arrive, and add an `optimistic: false` hook opt-out. Plumb through
React,
    Vue, Svelte, and Angular with browser e2e coverage.

- [#2497](https://github.com/langchain-ai/langgraphjs/pull/2497)
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconcile subagents and subgraphs on thread reconnect

Seed deep-agent subagent cards from checkpoint messages and subgraph
hosts from a single bounded `getHistory` read during `hydrate()`, so
parallel fan-out discovery reappears immediately on refresh instead of
waiting for SSE replay. Subagent execution namespaces are promoted
through the existing guarded discovery state machine (bulk at hydrate,
lazily per opened card via the selector layer). The getHistory cost is
O(1) in requests regardless of fan-out width.

- Updated dependencies
\[[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph-sdk@1.9.17

## @langchain/vue@1.0.17

### Patch Changes

- [#2494](https://github.com/langchain-ai/langgraphjs/pull/2494)
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): revive automatic optimistic submit echo

Echo `submit()` input into `values` / `messages` immediately with
client-side
id minting and id-based reconciliation as the server streams back.
Expose
per-message `optimisticStatus` via message metadata (`pending` → `sent`
/
`failed`), shallow-merge non-message keys with rollback when no `values`
arrive, and add an `optimistic: false` hook opt-out. Plumb through
React,
    Vue, Svelte, and Angular with browser e2e coverage.

- [#2497](https://github.com/langchain-ai/langgraphjs/pull/2497)
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): reconcile subagents and subgraphs on thread reconnect

Seed deep-agent subagent cards from checkpoint messages and subgraph
hosts from a single bounded `getHistory` read during `hydrate()`, so
parallel fan-out discovery reappears immediately on refresh instead of
waiting for SSE replay. Subagent execution namespaces are promoted
through the existing guarded discovery state machine (bulk at hydrate,
lazily per opened card via the selector layer). The getHistory cost is
O(1) in requests regardless of fan-out width.

- Updated dependencies
\[[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph-sdk@1.9.17

## @langchain/langgraph-ui@1.2.5



## @example/ai-elements@0.1.32

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph@1.3.6
    -   @langchain/react@1.0.17

## @examples/assistant-ui-claude@0.1.32

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph@1.3.6
    -   @langchain/react@1.0.17

## @examples/ui-angular@0.0.42

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph@1.3.6
    -   @langchain/langgraph-sdk@1.9.17
    -   @langchain/angular@1.0.17

## @examples/ui-multimodal@0.0.18

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph@1.3.6
    -   @langchain/react@1.0.17

## @examples/ui-react@0.0.18

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`0a0e04e`](https://github.com/langchain-ai/langgraphjs/commit/0a0e04e9ff7e82fd08411cc0094e1f94729a1e1e),
[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f),
[`a9aa8d6`](https://github.com/langchain-ai/langgraphjs/commit/a9aa8d6a9b23f5f7d4c56889fa68697b1e076b31)]:
    -   @langchain/langgraph@1.3.6
    -   @langchain/langgraph-sdk@1.9.17
    -   @langchain/react@1.0.17

## langgraph@1.0.38

### Patch Changes

- Updated dependencies
\[[`658a076`](https://github.com/langchain-ai/langgraphjs/commit/658a076d5b50af9f5b96ab99f26ed629da6e182f)]:
    -   @langchain/langgraph@1.3.6

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.17 @langchain/langgraph-api@1.2.5 @langchain/langgraph-cli@1.2.5 @langchain/langgraph-sdk@1.9.17 @langchain/langgraph-ui@1.2.5 @langchain/langgraph@1.3.6 @langchain/react@1.0.17 @langchain/svelte@1.0.17 @langchain/vue@1.0.17 		2026-06-05 15:52:16 -07:00
Christian Bromann 658a076d5b chore: update changesets 2026-06-05 15:47:20 -07:00
Christian Bromann a9aa8d6a9b fix(sdk): reconcile subagents and subgraphs on thread reconnect (#2497) 
## Summary
- Subagent cards are seeded from checkpoint messages and subgraph hosts
from a single bounded `getHistory` during `hydrate()`, so reconnecting
to a thread restores parallel fan-out discovery immediately instead of
waiting for full SSE replay.
- Subagent execution namespaces are resolved from history through the
existing guarded discovery state machine — bulk-promoted at hydrate, and
lazily per opened card via a selector-layer trigger added to
React/Vue/Svelte/Angular.
- `getHistory` usage is bounded (one page + at most one `before`-cursor
fallback) and O(1) in requests regardless of how many
subagents/subgraphs ran in parallel.

---------

Co-authored-by: open-swe[bot] <215916821+open-swe[bot]@users.noreply.github.com>
 2026-06-05 15:25:05 -07:00
dependabot[bot] f552c05813 chore(deps): bump hono from 4.12.18 to 4.12.21 (#2492) 
Bumps [hono](https://github.com/honojs/hono) from 4.12.18 to 4.12.21.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/honojs/hono/releases">hono's
releases</a>.</em></p>
<blockquote>
<h2>v4.12.21</h2>
<h2>Security fixes</h2>
<p>This release includes fixes for the following security issues:</p>
<h3>app.mount() strips mount prefix using undecoded path, causing
incorrect routing for percent-encoded paths</h3>
<p>Affects: <code>app.mount()</code>. Fixes prefix stripping using the
raw URL pathname instead of the decoded path, where percent-encoded
characters in the mount prefix or path could cause the prefix to be
removed at the wrong position, resulting in the sub-application
receiving an incorrect path. GHSA-2gcr-mfcq-wcc3</p>
<h3>IP Restriction bypasses static deny rules for non-canonical
IPv6</h3>
<p>Affects: <code>hono/ip-restriction</code>. Fixes IP address
comparison using string equality, where non-canonical IPv6
representations of a denied address — such as compressed forms or
hex-notation IPv4-mapped addresses — could bypass static deny rules.
GHSA-xrhx-7g5j-rcj5</p>
<h3>Cookie helper does not sanitize sameSite and priority, allowing
Set-Cookie injection</h3>
<p>Affects: <code>hono/cookie</code>. Fixes missing validation of
<code>sameSite</code> and <code>priority</code> options against
injection characters (<code>;</code>, <code>\r</code>, <code>\n</code>),
where user-controlled input passed to either option could inject
additional attributes into the Set-Cookie response header.
GHSA-3hrh-pfw6-9m5x</p>
<h3>JWT middleware accepts any Authorization scheme, not only
Bearer</h3>
<p>Affects: <code>hono/jwt</code>, <code>hono/jwk</code>. Fixes missing
scheme validation in the Authorization header, where any two-part header
value was accepted regardless of the scheme name, allowing non-Bearer
schemes to pass JWT authentication. GHSA-f577-qrjj-4474</p>
<hr />
<p>Users who use <code>app.mount()</code>,
<code>hono/ip-restriction</code>, <code>hono/cookie</code>, or
<code>hono/jwt</code>/<code>hono/jwk</code> are encouraged to upgrade to
this version.</p>
<h2>v4.12.20</h2>
<h2>What's Changed</h2>
<ul>
<li>fix(route): preserve the base path of the mounted route() app by <a
href="https://github.com/usualoma"><code>@​usualoma</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4942">honojs/hono#4942</a></li>
<li>fix(jsx): widen jsx and jsxFn children to Child[] by <a
href="https://github.com/ashunar0"><code>@​ashunar0</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4947">honojs/hono#4947</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/ashunar0"><code>@​ashunar0</code></a>
made their first contribution in <a
href="https://redirect.github.com/honojs/hono/pull/4947">honojs/hono#4947</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/honojs/hono/compare/v4.12.19...v4.12.20">https://github.com/honojs/hono/compare/v4.12.19...v4.12.20</a></p>
<h2>v4.12.19</h2>
<h2>What's Changed</h2>
<ul>
<li>ci: pin GitHub Actions to SHAs by <a
href="https://github.com/yusukebe"><code>@​yusukebe</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4932">honojs/hono#4932</a></li>
<li>fix(serveStatic): make options parameter optional in all adapters by
<a href="https://github.com/mixelburg"><code>@​mixelburg</code></a> in
<a
href="https://redirect.github.com/honojs/hono/pull/4934">honojs/hono#4934</a></li>
<li>fix(cookie): return the first cookie when there are multiple cookies
with the same name by <a
href="https://github.com/usualoma"><code>@​usualoma</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4922">honojs/hono#4922</a></li>
<li>feat(bearer-auth): make bearerAuth generic for typed context in
verifyToken by <a
href="https://github.com/justinnais"><code>@​justinnais</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4913">honojs/hono#4913</a></li>
<li>feat(cache): key cache entries by configured vary headers by <a
href="https://github.com/usualoma"><code>@​usualoma</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4915">honojs/hono#4915</a></li>
<li>feat(request): add <code>bytes()</code> by <a
href="https://github.com/yusukebe"><code>@​yusukebe</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4921">honojs/hono#4921</a></li>
<li>fix(stream): upgrade <code>@hono/node-server</code> to v2 and fix
abort handling by <a
href="https://github.com/yusukebe"><code>@​yusukebe</code></a> in <a
href="https://redirect.github.com/honojs/hono/pull/4940">honojs/hono#4940</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/justinnais"><code>@​justinnais</code></a> made
their first contribution in <a
href="https://redirect.github.com/honojs/hono/pull/4913">honojs/hono#4913</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/honojs/hono/compare/v4.12.18...v4.12.19">https://github.com/honojs/hono/compare/v4.12.18...v4.12.19</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/honojs/hono/commit/a83ddb882e0c0b8c336050dba087bb2e1b12488e"><code>a83ddb8</code></a>
4.12.21</li>
<li><a
href="https://github.com/honojs/hono/commit/6cbb025ff87fca1a3d00d0ccca0eaf3a6385c3f1"><code>6cbb025</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/honojs/hono/commit/c831020fb1fa2e929d222f6c84e1abfe013e512b"><code>c831020</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/honojs/hono/commit/905aedbc20661e0e2fa378783a7ec44a5c3df43d"><code>905aedb</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/honojs/hono/commit/5463db2735476959b8af67756f4e513f4fe19115"><code>5463db2</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/honojs/hono/commit/c657a39ccc8d3194d345d9e82c8587bd25b5b6e8"><code>c657a39</code></a>
4.12.20</li>
<li><a
href="https://github.com/honojs/hono/commit/eb2d0c238adbcee5933d0f8c15f1a65a88f50565"><code>eb2d0c2</code></a>
fix(jsx): widen jsx and jsxFn children to Child[] (<a
href="https://redirect.github.com/honojs/hono/issues/4947">#4947</a>)</li>
<li><a
href="https://github.com/honojs/hono/commit/dcabbece347817ef7193439c39d28546b8ac3a85"><code>dcabbec</code></a>
fix(route): preserve the base path of the mounted route() app (<a
href="https://redirect.github.com/honojs/hono/issues/4942">#4942</a>)</li>
<li><a
href="https://github.com/honojs/hono/commit/7e62bcd22fa4e8f0e83cb564bac85e32f5434dd3"><code>7e62bcd</code></a>
4.12.19</li>
<li><a
href="https://github.com/honojs/hono/commit/e2f252a8745eb25f06485b8d43e8410bf027c8ef"><code>e2f252a</code></a>
fix(stream): upgrade <code>@hono/node-server</code> to v2 and fix abort
handling (<a
href="https://redirect.github.com/honojs/hono/issues/4940">#4940</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/honojs/hono/compare/v4.12.18...v4.12.21">compare
view</a></li>
</ul>
</details>
<br />

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2026-06-04 22:35:51 -07:00
Christian Bromann 0a0e04e9ff fix(sdk): revive automatic optimistic submit echo (#2494) 
## Summary
- revive automatic optimistic updates to `@langchain/langgraph-sdk`:
`submit()` input is echoed into `values` / `messages` immediately,
messages without ids get client-minted ids for server reconciliation,
and non-message keys are shallow-merged with rollback when no `values`
snapshot arrives.
- Track per-message lifecycle via
`useMessageMetadata(...).optimisticStatus` (`pending` → `sent` /
`failed`); failed optimistic messages are kept for retry UX and dropped
on `hydrate()`.
- Plumb `optimistic?: boolean` through React, Vue, Svelte, and Angular
`useStream` hooks (defaults to enabled) and document the v1 migration
path replacing legacy `optimisticValues`.
- Add browser e2e tests across all four framework SDKs covering message
happy path, id reconciliation, failure handling, opt-out, and
non-message state convergence/rollback.
 2026-06-04 20:58:57 -07:00
github-actions[bot] 28fbf1dc4e chore: version packages (#2490) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph@1.3.5

### Patch Changes

- [#2489](https://github.com/langchain-ai/langgraphjs/pull/2489)
[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(core): keep stream chunks as three-element tuples

    Emit lightweight checkpoint envelopes as separate
`[namespace, "checkpoints", envelope]` chunks before paired `values`
chunks.
    Public `stream()` always yields `[namespace, mode, payload]`; the v3
    protocol path surfaces envelopes via `convertToProtocolEvent`.

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)]:
    -   @langchain/langgraph-sdk@1.9.16

## @langchain/langgraph-sdk@1.9.16

### Patch Changes

- [#2486](https://github.com/langchain-ai/langgraphjs/pull/2486)
[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): surface resumed run failures on stream.error

Route `respond()` and `respondAll()` through a coordinator dispatch path
that
writes the reactive `rootStore.error` slot when a resumed run reaches a
failed
terminal or when `input.respond` dispatch fails, matching submit()
behavior so
framework consumers (e.g. API-key retry UIs) observe resume failures via
    `stream.error` instead of only `isLoading` transitions.

## @langchain/angular@1.0.16

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)]:
    -   @langchain/langgraph-sdk@1.9.16

## @langchain/react@1.0.16

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)]:
    -   @langchain/langgraph-sdk@1.9.16

## @langchain/svelte@1.0.16

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)]:
    -   @langchain/langgraph-sdk@1.9.16

## @langchain/vue@1.0.16

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f)]:
    -   @langchain/langgraph-sdk@1.9.16

## @example/ai-elements@0.1.31

### Patch Changes

- Updated dependencies
\[[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph@1.3.5
    -   @langchain/react@1.0.16

## @examples/assistant-ui-claude@0.1.31

### Patch Changes

- Updated dependencies
\[[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph@1.3.5
    -   @langchain/react@1.0.16

## @examples/ui-angular@0.0.41

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f),
[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph-sdk@1.9.16
    -   @langchain/langgraph@1.3.5
    -   @langchain/angular@1.0.16

## @examples/ui-multimodal@0.0.17

### Patch Changes

- Updated dependencies
\[[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph@1.3.5
    -   @langchain/react@1.0.16

## @examples/ui-react@0.0.17

### Patch Changes

- Updated dependencies
\[[`244c24e`](https://github.com/langchain-ai/langgraphjs/commit/244c24eaccff4009df7d83e4320e51a4b310b15f),
[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph-sdk@1.9.16
    -   @langchain/langgraph@1.3.5
    -   @langchain/react@1.0.16

## langgraph@1.0.37

### Patch Changes

- Updated dependencies
\[[`e3a1933`](https://github.com/langchain-ai/langgraphjs/commit/e3a1933a8825a515d847b38b24a0743f4d418646)]:
    -   @langchain/langgraph@1.3.5

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.16 @langchain/langgraph-sdk@1.9.16 @langchain/langgraph@1.3.5 @langchain/react@1.0.16 @langchain/svelte@1.0.16 @langchain/vue@1.0.16 		2026-06-04 14:25:44 -07:00
Christian Bromann c6528b2ff4 chore(sdk): update vitest browser dependency (#2493) 
Updating Vitest dependencies due to vulnerability concerns.
 2026-06-04 14:21:50 -07:00
Christian Bromann e3a1933a88 fix(core): keep stream() on 3-tuple shape (#2489) 
## Summary
- Fixes `ValueError: too many values to unpack (expected 3)` when JS
graphs on `@langchain/langgraph` >=1.3 stream through the legacy path
(plain `stream()` / `streamEvents` v2 → `on_chain_stream`), which
affected deepagents 1.10.x and similar stacks on runtimes that expect
Python's 3-tuple stream shape.
- **Root cause:** `_streamIterator` always yielded a 4-element
`[namespace, mode, payload, meta]` when `subgraphs` + multi-mode and a
checkpointer were active, even though `StreamChunkMeta` is only for the
native v3 protocol stream (`streamEvents(..., { version: "v3" })` /
`pump()`).
- **Fix:** Introduce `isV3` and only append `meta` when `options.version
=== "v3"`; all other consumers get the Python-aligned 3-tuple
`[namespace, mode, payload]`.
- **Tests:** Add `stream() shape parity with Python` regression coverage
(3-tuples for subgraphs + multi-mode with checkpointer; v3 still emits
companion `checkpoints` events).
 2026-06-04 12:59:18 -07:00
Christian Bromann db75ba3d5b docs(sdk): update event based streaming migration guide (#2488) 
This patch updates the migration docs to the new event based streaming
mechanism. Improves wording and correctness.
 2026-06-04 10:08:48 -07:00
Christian Bromann 244c24eacc fix(sdk): surface resumed run failures on stream.error (#2486) 
## Summary
- Route `respond()` / `respondAll()` through
`SubmitCoordinator.dispatchResume()` so resumed runs write failures to
the reactive `rootStore.error` slot (same path `submit()` uses), instead
of only toggling `isLoading` via the lifecycle listener.
- Arm a background terminal watch before dispatch so `respond()` still
resolves on `input.respond` while a later `failed` lifecycle populates
`stream.error`.
- Add controller tests for failed resume, dispatch failure, and batched
`respondAll()` failure.
 2026-06-04 10:08:32 -07:00
dependabot[bot] a4919b667e chore(deps): bump the langchain group across 1 directory with 8 updates (#2476) 
Bumps the langchain group with 8 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [@langchain/anthropic](https://github.com/langchain-ai/langchainjs) |
`1.3.28` | `1.4.0` |
| [@langchain/core](https://github.com/langchain-ai/langchainjs) |
`1.1.44` | `1.1.48` |
| [langchain](https://github.com/langchain-ai/langchainjs) |
`1.4.0-dev-1777615538778` | `1.4.4` |
| [@langchain/openai](https://github.com/langchain-ai/langchainjs) |
`1.4.5` | `1.4.7` |
| [@langchain/groq](https://github.com/langchain-ai/langchainjs) |
`1.2.0` | `1.2.1` |
| [@langchain/mistralai](https://github.com/langchain-ai/langchainjs) |
`1.0.8` | `1.1.0` |
| [@langchain/classic](https://github.com/langchain-ai/langchainjs) |
`1.0.32` | `1.0.34` |
| [langsmith](https://github.com/langchain-ai/langsmith-sdk) | `0.6.0` |
`0.7.4` |


Updates `@langchain/anthropic` from 1.3.28 to 1.4.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/anthropic's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/anthropic</code><a
href="https://github.com/1"><code>@​1</code></a>.4.0</h2>
<h3>Minor Changes</h3>
<ul>
<li><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10777">#10777</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/0cfcfc66897d8fafeb7e7ed90b7299eace9a7c37"><code>0cfcfc6</code></a>
Thanks <a
href="https://github.com/jonaslalin"><code>@​jonaslalin</code></a>! -
feat(anthropic): support strict tool calling for custom tools</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/langchain-ai/langchainjs/commits/@langchain/anthropic@1.4.0">compare
view</a></li>
</ul>
</details>
<br />

Updates `@langchain/core` from 1.1.44 to 1.1.48
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/core's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/core</code><a
href="https://github.com/1"><code>@​1</code></a>.1.48</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10832">#10832</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/1b24369a970ad6f56f1f428027f48601f87e62eb"><code>1b24369</code></a>
Thanks <a
href="https://github.com/info-arnav"><code>@​info-arnav</code></a>! -
fix(core, openrouter): make CJS default re-exports callable</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10666">#10666</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/2bb55b053f49f89e81e3252a7af08e86d71ddd95"><code>2bb55b0</code></a>
Thanks <a
href="https://github.com/hnustwjj"><code>@​hnustwjj</code></a>! -
feat(openrouter): surface reasoning content as v1 standard content
blocks</p>
<p><code>convertOpenRouterResponseToBaseMessage</code> and
<code>convertOpenRouterDeltaToBaseMessageChunk</code> now copy
OpenRouter's
<code>reasoning</code> (flat string) and <code>reasoning_details</code>
(structured array) fields
onto <code>additional_kwargs.reasoning_content</code> /
<code>additional_kwargs.reasoning_details</code>.
A new <code>ChatOpenRouterTranslator</code> is registered in
<code>@langchain/core</code> under
the <code>&quot;openrouter&quot;</code> provider key so
<code>AIMessage.contentBlocks</code> emits standard
<code>{type: &quot;reasoning&quot;}</code> blocks alongside text and
tool calls.</p>
<p>Previously, reasoning text returned by reasoning-capable models
routed
through OpenRouter (DeepSeek R1, Minimax M2, Claude extended thinking,
o-series, etc.) was silently dropped: only the
<code>reasoning_tokens</code> count
was preserved via <code>usage_metadata</code>. Consumers using standard
content blocks
(including the frontend agent UI patterns shown in the docs) could not
display the model's chain of thought.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10918">#10918</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/3999fab55870c6eea22d6d90c08aa472f9b2fac3"><code>3999fab</code></a>
Thanks <a
href="https://github.com/christian-bromann"><code>@​christian-bromann</code></a>!
- fix(openai): stream custom tool calls through Responses API chunks</p>
</li>
</ul>
<h2><code>@​langchain/core</code><a
href="https://github.com/1"><code>@​1</code></a>.1.47</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10906">#10906</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/f61b3450f275831e47e69c08899b4a2b67b4bdb3"><code>f61b345</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
feat(core): add uuid v6 utility support</p>
<p>Add <code>v6</code> UUID generation support to
<code>@langchain/core/utils/uuid</code> by vendoring the upstream uuidjs
<code>v6</code> implementation and its <code>v1ToV6</code> helper,
exporting <code>v6</code> from the UUID utils index, and adding tests
for deterministic generation, buffer/offset behavior,
validation/versioning, and ordering.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10872">#10872</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/a64007997a4940f51bba3c1c83dae89d1ccfb692"><code>a640079</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
chore(deps): remove redundant <code>@​types/uuid</code> declarations</p>
<p>Remove <code>@types/uuid</code> from package manifests that rely on
<code>@langchain/core/utils/uuid</code> or do not require uuid type
stubs directly, and refresh the lockfile entries accordingly.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10792">#10792</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/3682268cd1844b2573b01f07bee367e21cb7bdc7"><code>3682268</code></a>
Thanks <a href="https://github.com/Genmin"><code>@​Genmin</code></a>! -
fix(core): apply v1 message casting after implicit streaming
aggregation</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10901">#10901</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/f26fc4a6f461d6d0f86d59bd00197ad510432c4a"><code>f26fc4a</code></a>
Thanks <a
href="https://github.com/christian-bromann"><code>@​christian-bromann</code></a>!
- fix(testing): share fakeModel invocation state across bindTools
instances</p>
</li>
</ul>
<h2><code>@​langchain/core</code><a
href="https://github.com/1"><code>@​1</code></a>.1.46</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10847">#10847</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/1659e7d36e31e315c890fa98f43db887f7a2d52b"><code>1659e7d</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
chore(core): reduce transitive dependency exposure and tighten release
hygiene</p>
<p>Remove direct runtime dependencies on <code>ansi-styles</code>,
<code>camelcase</code>, and <code>decamelize</code>
by inlining equivalent logic in core internals, and enable npm
provenance in the
release workflow.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10790">#10790</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/ef78bc6a21f9a8808ba95c98db2023f0a6b51bcc"><code>ef78bc6</code></a>
Thanks <a href="https://github.com/Genmin"><code>@​Genmin</code></a>! -
fix(core): keep different content block types separate when merging
chunks</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/langchain-ai/langchainjs/commits/@langchain/core@1.1.48">compare
view</a></li>
</ul>
</details>
<br />

Updates `langchain` from 1.4.0-dev-1777615538778 to 1.4.4
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">langchain's
releases</a>.</em></p>
<blockquote>
<h2>langchain@1.4.2</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10900">#10900</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/6bbddca1f8f7f280583fd839bb40c00bf19a0d51"><code>6bbddca</code></a>
Thanks <a
href="https://github.com/christian-bromann"><code>@​christian-bromann</code></a>!
- fix(langchain): unwrap tool message outputs in agent streams</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10706">#10706</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/4ecb6606feae3156a07de67e39e2027f857c476e"><code>4ecb660</code></a>
Thanks <a
href="https://github.com/JadenKim-dev"><code>@​JadenKim-dev</code></a>!
- fix(langchain): set name on todoListMiddleware ToolMessages</p>
</li>
</ul>
<h2>langchain@1.4.1</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10879">#10879</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/eb480cb6df8e0fa792826155bfa00a6db4536444"><code>eb480cb</code></a>
Thanks <a
href="https://github.com/vignesh-gep"><code>@​vignesh-gep</code></a>! -
fix(langchain/createAgent): throw on terminal
<code>providerStrategy</code> parse failure instead of silently
resolving with <code>structuredResponse: undefined</code></p>
<p>When <code>createAgent</code> was configured with
<code>responseFormat</code> resolving to a <code>providerStrategy</code>
(either passed explicitly or auto-promoted from a bare Zod / JSON schema
for models whose profile reports <code>structuredOutput: true</code>),
and the model produced a terminal response (no <code>tool_calls</code>)
whose text could not be JSON-parsed or did not satisfy the schema, the
agent silently exited with no <code>structuredResponse</code>, surfacing
later as <code>TypeError: Cannot read properties of undefined</code>.
The agent now throws a <code>StructuredOutputParsingError</code> in that
case while still allowing the agent loop to continue when tool calls are
present. Closes <a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10878">#10878</a>.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10872">#10872</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/a64007997a4940f51bba3c1c83dae89d1ccfb692"><code>a640079</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
chore(deps): remove redundant <code>@​types/uuid</code> declarations</p>
<p>Remove <code>@types/uuid</code> from package manifests that rely on
<code>@langchain/core/utils/uuid</code> or do not require uuid type
stubs directly, and refresh the lockfile entries accordingly.</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10160">#10160</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/bba900c7c8781c7efec856d5d3e539a93f14e797"><code>bba900c</code></a>
Thanks <a
href="https://github.com/JadenKim-dev"><code>@​JadenKim-dev</code></a>!
- fix(langchain): prevent llmToolSelectorMiddleware from leaking into
message stream</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/langchain-ai/langchainjs/commits/@langchain/openai@1.4.4">compare
view</a></li>
</ul>
</details>
<br />

Updates `@langchain/openai` from 1.4.5 to 1.4.7
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/openai's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/openai</code><a
href="https://github.com/1"><code>@​1</code></a>.4.7</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10918">#10918</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/3999fab55870c6eea22d6d90c08aa472f9b2fac3"><code>3999fab</code></a>
Thanks <a
href="https://github.com/christian-bromann"><code>@​christian-bromann</code></a>!
- fix(openai): stream custom tool calls through Responses API chunks</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10791">#10791</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/fce9ab418901323618fdfaaa9fc350fa1c0d50e0"><code>fce9ab4</code></a>
Thanks <a href="https://github.com/Genmin"><code>@​Genmin</code></a>! -
fix(openai): preserve top-level Responses API ids on AI messages</p>
</li>
</ul>
<h2><code>@​langchain/openai</code><a
href="https://github.com/1"><code>@​1</code></a>.4.6</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10902">#10902</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/229a7ad67b9a7ebd8df3ca451e0b8195bea0190e"><code>229a7ad</code></a>
Thanks <a
href="https://github.com/christian-bromann"><code>@​christian-bromann</code></a>!
- fix(openai): preserve v1 assistant tool calls</p>
</li>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10895">#10895</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/36fb0ef1dc76c096dcfa0c777e10c9f9365a5240"><code>36fb0ef</code></a>
Thanks <a href="https://github.com/BertBR"><code>@​BertBR</code></a>! -
fix(openai): guard bare <code>JSON.parse</code> in Responses API
converter against trailing non-whitespace characters</p>
<p><code>convertResponsesDeltaToChatGenerationChunk</code> previously
called <code>JSON.parse(msg.text)</code> directly when
<code>response.text.format.type === &quot;json_schema&quot;</code>. Some
models (observed with <code>gpt-5-mini</code> on <code>service_tier:
&quot;auto&quot;</code>) intermittently emit trailing non-whitespace
characters (extra tokens, control characters) after a valid JSON object,
causing a <code>SyntaxError</code> that propagates as an unhandled
exception and kills the entire streaming response mid-flight. The parse
is now wrapped in a <code>try</code>/<code>catch</code>: on failure,
<code>additional_kwargs.parsed</code> is left undefined, the stream
completes normally, and the existing <code>withStructuredOutput</code>
pipeline handles the typed failure — <code>includeRaw: true</code>
returns <code>{ raw, parsed: null }</code> via its
<code>withFallbacks</code> wrapper, <code>includeRaw: false</code>
throws a typed <code>OutputParserException</code> that the caller can
catch and retry. Closes <a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10894">#10894</a>.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/langchain-ai/langchainjs/commits/@langchain/openai@1.4.7">compare
view</a></li>
</ul>
</details>
<br />

Updates `@langchain/groq` from 1.2.0 to 1.2.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/groq's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/groq</code><a
href="https://github.com/1"><code>@​1</code></a>.2.1</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10872">#10872</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/a64007997a4940f51bba3c1c83dae89d1ccfb692"><code>a640079</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
chore(deps): remove redundant <code>@​types/uuid</code> declarations</p>
<p>Remove <code>@types/uuid</code> from package manifests that rely on
<code>@langchain/core/utils/uuid</code> or do not require uuid type
stubs directly, and refresh the lockfile entries accordingly.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/1b19e4f84d747b481879363b4884c20eb1c0f1a4"><code>1b19e4f</code></a>
chore: version packages (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10899">#10899</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/426e3aba21016d9ee070c3d130f74ae0047c9ce5"><code>426e3ab</code></a>
chore: fix uuid changeset (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10916">#10916</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/245c98216ce4a6c4340954711a7ad60203283424"><code>245c982</code></a>
chore(deps): bump fast-xml-builder from 1.1.5 to 1.2.0 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10914">#10914</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/126dac5a7a2fac5978448185893038ac8ea6d994"><code>126dac5</code></a>
chore(deps): bump brace-expansion from 5.0.5 to 5.0.6 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10912">#10912</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/1abe24becdddce94c5bd2acfaf920b60a683f22b"><code>1abe24b</code></a>
chore(deps): bump fast-uri from 3.1.0 to 3.1.2 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10913">#10913</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/229a7ad67b9a7ebd8df3ca451e0b8195bea0190e"><code>229a7ad</code></a>
fix(openai): preserve v1 assistant tool calls (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10902">#10902</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/f26fc4a6f461d6d0f86d59bd00197ad510432c4a"><code>f26fc4a</code></a>
fix(core): share fakeModel invocation state across bindTools instances
(<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10901">#10901</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/a0cd7477e59677c8d15e0e70b374afa0a2410582"><code>a0cd747</code></a>
chore(deps): bump fast-xml-builder from 1.1.5 to 1.1.9 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10910">#10910</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/b208e625865fc7487876b652f479dbf854263e68"><code>b208e62</code></a>
chore(deps): bump ip-address from 10.1.0 to 10.2.0 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10909">#10909</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/f7e50fb8b98bd9969c0f5cf0967a06df15453453"><code>f7e50fb</code></a>
feat(google): Service tier and custom headers (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10704">#10704</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langchainjs/compare/@langchain/groq@1.2.0...@langchain/groq@1.2.1">compare
view</a></li>
</ul>
</details>
<br />

Updates `@langchain/mistralai` from 1.0.8 to 1.1.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/mistralai's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/mistralai</code><a
href="https://github.com/1"><code>@​1</code></a>.1.0</h2>
<h3>Minor Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10873">#10873</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/a74d574f7f086bea2f5c7a852e869f7d24be2f55"><code>a74d574</code></a>
Thanks <a
href="https://github.com/baptistejamin"><code>@​baptistejamin</code></a>!
- chore(mistralai): upgrade to <code>@​mistralai/mistralai</code> v2</p>
<p>Also populates <code>response_metadata.model</code> on chat
completions (was missing before).</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/caad0914f068477293009dbf27a220fa96bdc4b8"><code>caad091</code></a>
chore: version packages (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10919">#10919</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/f4a6149e3e754203f5886dd8c2bccaa7a6fd4f81"><code>f4a6149</code></a>
chore(deps): bump fast-uri from 3.1.0 to 3.1.2 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10926">#10926</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/7b12f6dfa537932073f96b561d7c851b30d69132"><code>7b12f6d</code></a>
chore(deps): bump protobufjs from 7.5.6 to 7.6.0 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10930">#10930</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/5c6c5fef0cb392e782675ca5926e291a4295a653"><code>5c6c5fe</code></a>
chore(deps): bump ws from 5.2.4 to 8.20.0 (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10915">#10915</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/a8652ceeb5e36434565c96fc1a6bd9a4a36304cc"><code>a8652ce</code></a>
docs: fix typos, add Ollama setup, update outdated references (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10922">#10922</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/2bb55b053f49f89e81e3252a7af08e86d71ddd95"><code>2bb55b0</code></a>
feat(openrouter): surface reasoning as v1 standard content blocks (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10666">#10666</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/4ecb6606feae3156a07de67e39e2027f857c476e"><code>4ecb660</code></a>
fix(langchain): set name on todoListMiddleware ToolMessages (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10706">#10706</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/20f27dff08a4bd5a1a16c1c71a88405c9df82914"><code>20f27df</code></a>
fix(ibm): handle API errors in streaming responses (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10721">#10721</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/45668734c3205e631cdd33ac071bbf733f4558c7"><code>4566873</code></a>
feat(ibm): add integration test to IBM implementation (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10732">#10732</a>)</li>
<li><a
href="https://github.com/langchain-ai/langchainjs/commit/6e4337fec1a7707c1a1c709a7b6aa0c5efb7b11d"><code>6e4337f</code></a>
fix(aws): add claude-haiku-4 to supportedToolChoiceValuesForModel (<a
href="https://redirect.github.com/langchain-ai/langchainjs/issues/10743">#10743</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langchainjs/compare/@langchain/classic@1.0.8...@langchain/mistralai@1.1.0">compare
view</a></li>
</ul>
</details>
<br />

Updates `@langchain/classic` from 1.0.32 to 1.0.34
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langchainjs/releases">@​langchain/classic's
releases</a>.</em></p>
<blockquote>
<h2><code>@​langchain/classic</code><a
href="https://github.com/1"><code>@​1</code></a>.0.34</h2>
<h3>Patch Changes</h3>
<ul>
<li>Updated dependencies [<a
href="https://github.com/langchain-ai/langchainjs/commit/3999fab55870c6eea22d6d90c08aa472f9b2fac3"><code>3999fab</code></a>,
<a
href="https://github.com/langchain-ai/langchainjs/commit/fce9ab418901323618fdfaaa9fc350fa1c0d50e0"><code>fce9ab4</code></a>]:
<ul>
<li><code>@​langchain/openai</code><a
href="https://github.com/1"><code>@​1</code></a>.4.7</li>
</ul>
</li>
</ul>
<h2><code>@​langchain/classic</code><a
href="https://github.com/1"><code>@​1</code></a>.0.33</h2>
<h3>Patch Changes</h3>
<ul>
<li>
<p><a
href="https://redirect.github.com/langchain-ai/langchainjs/pull/10872">#10872</a>
<a
href="https://github.com/langchain-ai/langchainjs/commit/a64007997a4940f51bba3c1c83dae89d1ccfb692"><code>a640079</code></a>
Thanks <a href="https://github.com/hntrl"><code>@​hntrl</code></a>! -
chore(deps): remove redundant <code>@​types/uuid</code> declarations</p>
<p>Remove <code>@types/uuid</code> from package manifests that rely on
<code>@langchain/core/utils/uuid</code> or do not require uuid type
stubs directly, and refresh the lockfile entries accordingly.</p>
</li>
<li>
<p>Updated dependencies [<a
href="https://github.com/langchain-ai/langchainjs/commit/229a7ad67b9a7ebd8df3ca451e0b8195bea0190e"><code>229a7ad</code></a>,
<a
href="https://github.com/langchain-ai/langchainjs/commit/36fb0ef1dc76c096dcfa0c777e10c9f9365a5240"><code>36fb0ef</code></a>]:</p>
<ul>
<li><code>@​langchain/openai</code><a
href="https://github.com/1"><code>@​1</code></a>.4.6</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/langchain-ai/langchainjs/commits/@langchain/classic@1.0.34">compare
view</a></li>
</ul>
</details>
<br />

Updates `langsmith` from 0.6.0 to 0.7.4
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langsmith-sdk/releases">langsmith's
releases</a>.</em></p>
<blockquote>
<h2>v0.7.4</h2>
<h2>What's Changed</h2>
<ul>
<li>fix(google-adk): add wrapt dependency by <a
href="https://github.com/QuentinBrosse"><code>@​QuentinBrosse</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2436">langchain-ai/langsmith-sdk#2436</a></li>
<li>chore: lock dependencies by <a
href="https://github.com/QuentinBrosse"><code>@​QuentinBrosse</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2439">langchain-ai/langsmith-sdk#2439</a></li>
<li>release(py): 0.7.4 by <a
href="https://github.com/QuentinBrosse"><code>@​QuentinBrosse</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2441">langchain-ai/langsmith-sdk#2441</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.3...v0.7.4">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.3...v0.7.4</a></p>
<h2>v0.7.3</h2>
<h2>What's Changed</h2>
<ul>
<li>fix: propagate tracingEnabled to nested traceables by <a
href="https://github.com/hntrl"><code>@​hntrl</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2427">langchain-ai/langsmith-sdk#2427</a></li>
<li>chore(python): openai agents: delay span start for spans without
inputs on start event by <a
href="https://github.com/angus-langchain"><code>@​angus-langchain</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2424">langchain-ai/langsmith-sdk#2424</a></li>
<li>release(py): 0.7.3 by <a
href="https://github.com/angus-langchain"><code>@​angus-langchain</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2428">langchain-ai/langsmith-sdk#2428</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.2...v0.7.3">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.2...v0.7.3</a></p>
<h2>v0.7.2</h2>
<h2>What's Changed</h2>
<ul>
<li>release(js): 0.5.1 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2389">langchain-ai/langsmith-sdk#2389</a></li>
<li>fix(js): Remove <a
href="https://github.com/internal"><code>@​internal</code></a> by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2391">langchain-ai/langsmith-sdk#2391</a></li>
<li>release(js): 0.5.2 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2392">langchain-ai/langsmith-sdk#2392</a></li>
<li>chore(deps-dev): bump openai from 5.8.2 to 6.18.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2378">langchain-ai/langsmith-sdk#2378</a></li>
<li>chore(deps-dev): bump cross-env from 7.0.3 to 10.1.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2379">langchain-ai/langsmith-sdk#2379</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group in /js with 4
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2376">langchain-ai/langsmith-sdk#2376</a></li>
<li>chore(deps-dev): bump node-fetch from 2.7.0 to 3.3.2 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2380">langchain-ai/langsmith-sdk#2380</a></li>
<li>Google ADK LangSmith tracing enhancements by <a
href="https://github.com/j-broekhuizen"><code>@​j-broekhuizen</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2394">langchain-ai/langsmith-sdk#2394</a></li>
<li>chore: update dependabot.yml to comply with posture checks by <a
href="https://github.com/jkennedyvz"><code>@​jkennedyvz</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2393">langchain-ai/langsmith-sdk#2393</a></li>
<li>chore(deps): bump cryptography from 46.0.3 to 46.0.5 in /python in
the uv group across 1 directory by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2397">langchain-ai/langsmith-sdk#2397</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group in /js with 6
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2398">langchain-ai/langsmith-sdk#2398</a></li>
<li>chore(deps-dev): bump eslint-config-prettier from 8.10.0 to 10.1.8
in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2399">langchain-ai/langsmith-sdk#2399</a></li>
<li>chore(deps): bump packaging from 25.0 to 26.0 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2403">langchain-ai/langsmith-sdk#2403</a></li>
<li>chore(deps-dev): bump pytest from 8.4.2 to 9.0.2 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2405">langchain-ai/langsmith-sdk#2405</a></li>
<li>chore(deps): bump the py-minor-and-patch group across 1 directory
with 20 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2406">langchain-ai/langsmith-sdk#2406</a></li>
<li>fix(js): Log Vitest/Jest outputs even if test throws an error by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2408">langchain-ai/langsmith-sdk#2408</a></li>
<li>fix(js): Remove async by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2409">langchain-ai/langsmith-sdk#2409</a></li>
<li>release(js): 0.5.3 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2410">langchain-ai/langsmith-sdk#2410</a></li>
<li>fix: ignoring p-queue dep by <a
href="https://github.com/jkennedyvz"><code>@​jkennedyvz</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2414">langchain-ai/langsmith-sdk#2414</a></li>
<li>feat(js): add feedback config CRUD and annotation queue rubric items
(closes LSPE-67) by <a
href="https://github.com/bentanny"><code>@​bentanny</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2420">langchain-ai/langsmith-sdk#2420</a></li>
<li>fix(js): Add on_start handler for traceable, use in evaluate by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2421">langchain-ai/langsmith-sdk#2421</a></li>
<li>release(js): 0.5.4 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2422">langchain-ai/langsmith-sdk#2422</a></li>
<li>feat(python): add feedback config CRUD and annotation queue rubric
items (closes LSPE-67) by <a
href="https://github.com/bentanny"><code>@​bentanny</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2419">langchain-ai/langsmith-sdk#2419</a></li>
<li>feat(python): add exceptions_to_handle to <a
href="https://github.com/traceable"><code>@​traceable</code></a> by <a
href="https://github.com/QuentinBrosse"><code>@​QuentinBrosse</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2423">langchain-ai/langsmith-sdk#2423</a></li>
<li>release(py): 0.7.2 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2426">langchain-ai/langsmith-sdk#2426</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/j-broekhuizen"><code>@​j-broekhuizen</code></a>
made their first contribution in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2394">langchain-ai/langsmith-sdk#2394</a></li>
<li><a href="https://github.com/bentanny"><code>@​bentanny</code></a>
made their first contribution in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2420">langchain-ai/langsmith-sdk#2420</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/1132e6ce6391d08158a93acb5c96b90521ac3230"><code>1132e6c</code></a>
release(py): 0.7.4 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2441">#2441</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/8c7cc783806e4a6d71300982d58ecb3c9bc658cd"><code>8c7cc78</code></a>
chore: lock dependencies (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2439">#2439</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/62c256ea56fdee0bc539275c749a427e510ded8f"><code>62c256e</code></a>
fix(google-adk): add wrapt dependency (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2436">#2436</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/e32d4c18a681553f47c93350f03dc0a0f0cc4890"><code>e32d4c1</code></a>
release(py): 0.7.3 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2428">#2428</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/1c51bf881dafaeb01432db629de7cafaabca79dc"><code>1c51bf8</code></a>
chore(python): openai agents: delay span start for spans without inputs
on st...</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/a41bf22dadaea489a156dc06a9d0fbf1a977ff6d"><code>a41bf22</code></a>
fix: propagate tracingEnabled to nested traceables (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2427">#2427</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/3a6e9dac4bf3a940f7ee47e420cc1422f9f4a4b4"><code>3a6e9da</code></a>
release(py): 0.7.2 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2426">#2426</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/f665e865e7ab7a0ba1de447f2a1cf14c719af00a"><code>f665e86</code></a>
feat(python): add exceptions_to_handle to <a
href="https://github.com/traceable"><code>@​traceable</code></a> (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2423">#2423</a>)</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/565c4a2c5769e698ecffbf7f43131ff9cc467f8d"><code>565c4a2</code></a>
feat(python): add feedback config CRUD and annotation queue rubric items
(clo...</li>
<li><a
href="https://github.com/langchain-ai/langsmith-sdk/commit/e1b1fe13c382371ebe4cffa1b95eba3bf74e2f37"><code>e1b1fe1</code></a>
release(js): 0.5.4 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2422">#2422</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.0...v0.7.4">compare
view</a></li>
</ul>
</details>
<br />

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: John Kennedy <jkennedyvz@users.noreply.github.com>
 2026-06-03 19:51:50 -07:00
github-actions[bot] 34b7f6cfc5 chore: version packages (#2485) 
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @langchain/langgraph-sdk@1.9.15

### Patch Changes

- [#2484](https://github.com/langchain-ai/langgraphjs/pull/2484)
[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)
Thanks [@christian-bromann](https://github.com/christian-bromann)! -
fix(sdk): claim in-flight slot before root pump wait for enqueue

Move `#runAbort` and `isLoading` setup ahead of `waitForRootPumpReady()`
so
`multitaskStrategy: "enqueue"` submits in the same tick land in
`queueStore`
    instead of bypassing the client queue.

## @langchain/angular@1.0.15

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15

## @langchain/react@1.0.15

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15

## @langchain/svelte@1.0.15

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15

## @langchain/vue@1.0.15

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15

## @example/ai-elements@0.1.30

### Patch Changes

-   Updated dependencies \[]:
    -   @langchain/react@1.0.15

## @examples/assistant-ui-claude@0.1.30

### Patch Changes

-   Updated dependencies \[]:
    -   @langchain/react@1.0.15

## @examples/ui-angular@0.0.40

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15
    -   @langchain/angular@1.0.15

## @examples/ui-multimodal@0.0.16

### Patch Changes

-   Updated dependencies \[]:
    -   @langchain/react@1.0.15

## @examples/ui-react@0.0.16

### Patch Changes

- Updated dependencies
\[[`9861f42`](https://github.com/langchain-ai/langgraphjs/commit/9861f42cc4fa23d9e80ae45a76d511d7618cda07)]:
    -   @langchain/langgraph-sdk@1.9.15
    -   @langchain/react@1.0.15

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
@langchain/angular@1.0.15 @langchain/langgraph-sdk@1.9.15 @langchain/react@1.0.15 @langchain/svelte@1.0.15 @langchain/vue@1.0.15 		2026-06-03 15:49:38 -07:00
Christian Bromann 9861f42cc4 fix(sdk): claim in-flight slot before root pump wait for enqueue (#2484) 
## Summary
- Fix a race in `SubmitCoordinator.submit()` where `multitaskStrategy:
"enqueue"` follow-ups fired in the same tick as the first dispatch could
miss `hasActiveRun` and skip the client `queueStore`.
- Claim the in-flight slot (`#runAbort`, `isLoading`) before
`waitForRootPumpReady()` so concurrent enqueues are recorded client-side
and drain sequentially as intended.
- Add a regression test for same-tick enqueue behavior.
 2026-06-03 15:46:34 -07:00
J3tCh3n 8e2b8584c5 docs: Update customer_support_small_model example to use non-deprecated methods and add type annotations (#1718) 
## Description

Updated the `customer_support_small_model.ipynb` example to use
non-deprecated API methods and improve TypeScript type safety.

## Changes

### 1. Replace deprecated `_getType()` method
- **Before**: `if (trimmedHistory.at(-1)._getType() === "ai")`
- **After**: `if (trimmedHistory[trimmedHistory.length - 1].getType()
=== "ai")`
- The `_getType()` method signature is deprecated and should be replaced
with `getType()`
- Also replaced `.at(-1)` with `[trimmedHistory.length - 1]` to fix
TypeScript "possibly undefined" error (ts(2532))

### 2. Add missing type annotation
- **Location**: `addConditionalEdges` callback in `billing_support` node
- **Added**: `async (state: typeof StateAnnotation.State) =>` type
annotation
- Ensures consistency with other conditional edge definitions in the
example

## Type of Change
- [x] Documentation update
- [x] Bug fix (non-breaking change which fixes TypeScript errors)

## Testing
- Verified code changes compile without TypeScript errors
- Confirmed deprecated method warnings are resolved

## Motivation

This PR addresses two issues in the example notebook:

1. **API Deprecation**: The `_getType()` method is deprecated and should
be replaced with the public `getType()` API
2. **TypeScript Safety**: Adding explicit type annotations and using
safer array access patterns improves type safety and prevents potential
runtime errors
 2026-06-03 15:44:24 -07:00