[PR #4103] Add fast path to serialize None values #3646

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opened 2026-02-20 17:48:56 -05:00 by yindo · 0 comments

yindo commented 2026-02-20 17:48:56 -05:00

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Original Pull Request: https://github.com/langchain-ai/langgraph/pull/4103

State: closed
Merged: Yes

---

• If the value to serialize is None we can use encode it in the string type, and skip msgpack encoding
• Use None value for edge/branch channels in StateGraph

**Original Pull Request:** https://github.com/langchain-ai/langgraph/pull/4103 **State:** closed **Merged:** Yes --- - If the value to serialize is None we can use encode it in the string type, and skip msgpack encoding - Use None value for edge/branch channels in StateGraph

yindo added the pull-request label 2026-02-20 17:48:56 -05:00

yindo closed this issue 2026-02-20 17:48:56 -05:00

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checkpoint==2.0.2

checkpointduckdb==2.0.0

0.2.39

0.2.38

0.2.37

0.2.36

sdk==0.1.33

0.2.35

checkpointpostgres==2.0.1

checkpoint==2.0.1

0.2.34

0.2.33

checkpointpostgres==2.0.0

0.2.32

checkpointsqlite==2.0.0

checkpoint==2.0.0

sdk==0.1.32

checkpointpostgres==1.0.11

0.2.31

checkpointpostgres==1.0.10

0.2.30

checkpoint==1.0.14

0.2.29

checkpoint==1.0.13

checkpointpostgres==1.0.9

checkpoint==1.0.12

0.2.28

0.2.27

0.2.26

checkpointsqlite==1.0.4

checkpointpostgres==1.0.8

checkpoint==1.0.11

0.2.25

sdk==0.1.31

0.2.24

0.2.23

checkpointpostgres==1.0.7

checkpoint==1.0.10

0.2.22

0.2.21

0.2.20

0.2.19

0.2.18

checkpoint==1.0.9

0.2.17

checkpointsqlite==1.0.3

checkpointsqlite==1.0.2

checkpointpostgres==1.0.6

0.2.16

checkpoint==1.0.8

0.2.15

checkpointsqlite==1.0.1

checkpoint==1.0.7

checkpointpostgres==1.0.5

sdk==0.1.30

cli==0.1.52

checkpointpostgres==1.0.4

sdk==0.1.29

0.2.13

cli==0.1.51

0.2.12

checkpoint==1.0.4

0.2.11

0.2.10

0.2.9

sdk==0.1.28

0.2.7

0.2.6

0.2.5

0.2.4

checkpoint==1.0.3

checkpointpostgres==1.0.3

checkpointpostgres==1.0.2

0.2.3

checkpointpostgres==1.0.1

0.2.2

0.2.1

checkpoint==1.0.2

0.2.0

checkpointpostgres==1.0.0

checkpointsqlite==1.0.0

checkpoint==1.0.1

sdk==0.1.27

checkpoint==1.0.0

0.1.17

0.1.16

0.1.15

0.1.14

0.1.13

0.1.12

0.1.11

0.1.10

cli==0.1.50

0.1.9

cli==0.1.49

sdk==0.1.26

0.1.8

0.1.7

0.1.6

cli==0.1.48

0.1.5

cli==0.1.47

0.1.4

0.1.3

cli==0.1.46

cli==0.1.45

cli==0.1.45a1

0.1.2

sdk==0.1.25

sdk==0.1.24

cli==0.1.45a0

cli==0.1.44

cli==0.1.42

cli==0.1.41

cli==0.1.40

sdk==0.1.23

langgraph-cli==0.1.39

v0.0.8

v0.0.7

v0.0.6

v0.0.5

v0.0.4

v0.0.3

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Reference: langchain-ai/langgraph#3646