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1.8.2

This is a patch release with security fixes and bug fixes since 1.8.1, along with new builds for Windows arm64 and Docker arm/v7. Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.8.1...jq-1.8.2.

Security fixes

  • CVE-2026-32316: Fix heap buffer overflow in jvp_string_append and jvp_string_copy_replace_bad. @itchyny e47e56d226
  • CVE-2026-33947: Limit path depth to prevent stack overflow in jv_setpath, jv_getpath, jv_delpaths. @itchyny fb59f14910
  • CVE-2026-33948: Fix NUL truncation in the JSON parser. @itchyny 6374ae0bcd
  • CVE-2026-39956: Fix _strindices missing runtime type checks. @tlsbollei fdf8ef0f08
  • CVE-2026-39979: Fix out-of-bounds read in jv_parse_sized(). @wader 2f09060afa
  • CVE-2026-40164: Randomize hash seed to mitigate hash collision DoS attacks. @AsafMeizner @itchyny 0c7d133c3c
  • CVE-2026-40612: Limit containment check depth to prevent stack overflow in contains. @itchyny d1a12569d9
  • CVE-2026-41256: Fix NUL truncation in program files loaded with -f. @itchyny 5a015deae3
  • CVE-2026-41257: Fix signed-int overflow in stack_reallocate. @itchyny 01b3cded76
  • CVE-2026-43894: Reject numeric literals longer than DEC_MAX_DIGITS (999999999). @itchyny 9761ceb7d6
  • CVE-2026-43895: Reject embedded NUL bytes in module import paths. @itchyny 9d223f153c
  • CVE-2026-43896: Limit recursive object merge depth to prevent stack overflow. @itchyny 532ccea608
  • CVE-2026-44777: Detect circular module imports to prevent stack overflow. @itchyny f58787c418
  • CVE-2026-47770: Guard deep structural equality and comparison recursion. @fuyu0425 7122866869
  • CVE-2026-49839: Fix heap-buffer-overflow in raw file loading. @itchyny e987df0d46
  • CVE-2026-54679: Tighten string length bounds and propagate invalid jv in implode. @itchyny 46d1da3094
  • GHSA-gf4g-95wj-4q4r: Fix use-after-free in args2obj() array argument path. @sseal #3498
  • GHSA-hj52-j2c9-r8r4: Fix signed-int overflow in tokenadd to prevent buffer overflow. @itchyny 63751f8a9f
  • Limit the number of function parameters and definitions to prevent SEGV. @OwenSanzas #3460
  • Pre-allocate tokenbuf for string parser to avoid undefined behavior. @fab1ano #3485
  • Avoid stack overflow when freeing deeply nested values. @itchyny 33d7bce321
  • Fix memory leaks and double frees. @itchyny #3487

Releasing

  • Add builds for Windows arm64. @dennisameling #3376
  • Support arm/v7 architecture in Docker images. @itchyny #3463
  • Update GPG signing key. @itchyny 0ff997f7c4
  • Add artifact-metadata permission for actions/attest. @itchyny #3530
  • Upload attestation bundle as a release artifact, allowing unauthenticated verification via gh attestation verify --bundle jq-attestation.json. @itchyny #3563

CLI changes

  • Improve error message truncation with closing delimiters. @itchyny #3478
  • Remove extra space from die function output. @krtk6160 #3391
  • Fix raw input flag not to corrupt multi-byte characters. @itchyny #3421
  • Fix crash when importing a module with errors twice. @itchyny #3497
  • Increase the maximum printing depth from 256 to 10000. @ishnagy #3414

Changes to existing functions

  • Fix rtrimstr("") always outputting "". @A4-Tacks #3415
  • Fix infinite loop and undefined behavior in del(.[nan]). @itchyny #3490
  • Refactor @uri and @urid to fix multi-byte UTF-8 corruption. @itchyny #3495
  • Fix tonumber and toboolean to reject strings with embedded null bytes. @itchyny #3496
  • Fix undefined behavior in modulo operator. @fab1ano #3486
  • Fix reversed pointer subtraction in f_env bounds check. @itchyny #3465
  • Fix missing validity check in f_strflocaltime after f_localtime. @itchyny #3491
  • Fix year 2038 problem on 32-bit platforms. @itchyny #3407
  • Use // instead of //= in from_entries definition. @itchyny #3516

Build and test changes

  • Drop strptime test using non-portable %F. @alyssais #3365
  • Limit oniguruma depth to 1024 in jq_fuzz_execute. @sudhackar #3377
  • Fix localization test for time formatting functions. @itchyny #3409
  • Fix expected value assertion. @itchyny #3431 #3408
  • Fix typo in tests/jq.test. @bigmoonbit #3441
  • Refactor tm2jv to handle fractional seconds. @itchyny #3489
  • Fix jq_fuzz_parse_stream: use iterative parser API for streaming mode. @OwenSanzas #3499
  • Fix crashes and resource leaks in jq_testsuite. @itchyny #3509
  • Support building with --disable-maintainer-mode and source != build dir. @Saur2000 #3518
  • Add Solaris support. @vlmarek #3515
  • Respect SOURCE_DATE_EPOCH while generating man page. @McSinyx #3514
  • Fix undefined pointer arithmetic in UTF-8 helpers. @theyoucheng df924eae91
  • Fix one-byte over-read in BASE64_DECODE_TABLE. @itchyny #3547

Documentation changes

  • Add wiki link to navigation bar. @wader #3424
  • Add missing word in manual for rawfile. @jpmens #3434
  • Fix typo "stder" to "stderr". @jjatria #3446
  • Fix buttons in tutorial to toggle labels when clicked on. @itchyny #3493
  • Fix "happened" spelling in tutorial changelog entries. @Rohan5commit #3525

1.8.1

This is a patch release to fix security, performance, and build issues found in 1.8.0. Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.8.0...jq-1.8.1.

Security fixes

  • CVE-2025-49014: Fix heap use after free in f_strftime, f_strflocaltime. @wader 499c91bca9
  • GHSA-f946-j5j2-4w5m: Fix stack overflow in node_min_byte_len of oniguruma. @wader 5e159b34b1

CLI changes

  • Fix assertion failure when syntax error happens at the end of the query. @itchyny #3350

Changes to existing functions

  • Fix portability of strptime/1 especially for Windows. @itchyny #3342

Language changes

  • Revert the change of reduce/foreach state variable in 1.8.0 (#3205). This change was reverted due to serious performance regression. @itchyny #3349

Documentation changes

  • Add LICENSE notice of NetBSD's strptime() to COPYING. @itchyny #3344

Build improvements

  • Fix build on old Mac with old sed. @qianbinbin #3336

1.8.0

We are pleased to announce the release of version 1.8.0. This release includes a number of improvements since the last version. Note that some changes may introduce breaking changes to existing scripts, so be sure to read the following information carefully. Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.7.1...jq-1.8.0.

Releasing

  • Change the version number pattern to 1.X.Y (1.8.0 instead of 1.8). @itchyny #2999

  • Generate provenance attestations for release artifacts and docker image. @lectrical #3225

    gh attestation verify --repo jqlang/jq jq-linux-amd64
gh attestation verify --repo jqlang/jq oci://ghcr.io/jqlang/jq:1.8.0

Security fixes

  • CVE-2024-23337: Fix signed integer overflow in jvp_array_write and jvp_object_rehash. @itchyny de21386681
    • The fix for this issue now limits the maximum size of arrays and objects to 536870912 (2^29) elements.
  • CVE-2024-53427: Reject NaN with payload while parsing JSON. @itchyny a09a4dfd55
    • The fix for this issue now drops support for NaN with payload in JSON (like NaN123). Other JSON extensions like NaN and Infinity are still supported.
  • CVE-2025-48060: Fix heap buffer overflow in jv_string_vfmt. @itchyny c6e041699d
  • Fix use of uninitialized value in check_literal. @itchyny #3324
  • Fix segmentation fault on strftime/1, strflocaltime/1. @itchyny #3271
  • Fix unhandled overflow in @base64d. @emanuele6 #3080

CLI changes

  • Fix --indent 0 implicitly enabling --compact-output. @amarshall @gbrlmarn @itchyny #3232

    $ jq --indent 0 . <<< '{ "foo": ["hello", "world"] }'
{
"foo": [
"hello",
"world"
]
}
# Previously, this implied --compact-output, but now outputs with new lines.

  • Improve error messages to show problematic position in the filter. @itchyny #3292

    $ jq -n '1 + $foo + 2'
jq: error: $foo is not defined at <top-level>, line 1, column 5:
    1 + $foo + 2
        ^^^^
jq: 1 compile error

  • Include column number in parser and compiler error messages. @liviubobocu #3257

  • Fix error message for string literal beginning with single quote. @mattmeyers #2964

    $ jq .foo <<< "{'foo':'bar'}"
jq: parse error: Invalid string literal; expected ", but got ' at line 1, column 7
# Previously, the error message was Invalid numeric literal at line 1, column 7.

  • Improve JQ_COLORS environment variable to support larger escapes like truecolor. @SArpnt #3282

    JQ_COLORS="38;2;255;173;173:38;2;255;214;165:38;2;253;255;182:38;2;202;255;191:38;2;155;246;255:38;2;160;196;255:38;2;189;178;255:38;2;255;198;255" jq -nc '[null,false,true,42,{"a":"bc"}]'

  • Add --library-path long option for -L. @thaliaarchi #3194

  • Fix --slurp --stream when input has no trailing newline character. @itchyny #3279

  • Fix --indent option to error for malformed values. @thaliaarchi #3195

  • Fix option parsing of --binary on non-Windows platforms. @calestyo #3131

  • Fix issue with ~/.jq on Windows where $HOME is not set. @kirkoman #3114

  • Fix broken non-Latin output in the command help on Windows. @itchyny #3299

  • Increase the maximum parsing depth for JSON to 10000. @itchyny #3328

  • Parse short options in order given. @thaliaarchi #3194

  • Consistently reset color formatting. @thaliaarchi #3034

New functions

  • Add trim/0, ltrim/0 and rtrim/0 to trim leading and trailing white spaces. @wader #3056

    $ jq -n '" hello " | trim, ltrim, rtrim'
"hello"
"hello "
" hello"

  • Add trimstr/1 to trim string from both ends. @gbrlmarn #3319

    $ jq -n '"foobarfoo" | trimstr("foo")'
"bar"

  • Add add/1. Generator variant of add/0. @myaaaaaaaaa #3144

    $ jq -c '.sum = add(.xs[])' <<< '{"xs":[1,2,3]}'
{"xs":[1,2,3],"sum":6}

  • Add skip/2 as the counterpart to limit/2. @itchyny #3181

    $ jq -nc '[1,2,3,4,5] | [skip(2; .[])]'
[3,4,5]

  • Add toboolean/0 to convert strings to booleans. @brahmlower @itchyny #2098

    $ jq -n '"true", "false" | toboolean'
true
false

  • Add @urid format. Reverse of @uri. @fmgornick #3161

    $ jq -Rr '@urid' <<< '%6a%71'
jq

Changes to existing functions

  • Use code point index for indices/1, index/1 and rindex/1. @wader #3065
    • This is a breaking change. Use utf8bytelength/0 to get byte index.
  • Improve tonumber/0 performance and rejects numbers with leading or trailing white spaces. @itchyny @thaliaarchi #3055 #3195
    • This is a breaking change. Use trim/0 to remove leading and trailing white spaces.
  • Populate timezone data when formatting time. This fixes timezone name in strftime/1, strflocaltime/1 for DST. @marcin-serwin @sihde #3203 #3264 #3323
  • Preserve numerical precision on unary negation, abs/0, length/0. @itchyny #3242 #3275
  • Make last(empty) yield no output values like first(empty). @itchyny #3179
  • Make ltrimstr/1 and rtrimstr/1 error for non-string inputs. @emanuele6 #2969
  • Make limit/2 error for negative count. @itchyny #3181
  • Fix mktime/0 overflow and allow fewer elements in date-time representation array. @emanuele6 #3070 #3162
  • Fix non-matched optional capture group. @wader #3238
  • Provide strptime/1 on all systems. @george-hopkins @fdellwing #3008 #3094
  • Fix _WIN32 port of strptime. @emanuele6 #3071
  • Improve bsearch/1 performance by implementing in C. @eloycoto #2945
  • Improve unique/0 and unique_by/1 performance. @itchyny @emanuele6 #3254 #3304
  • Fix error messages including long string literal not to break Unicode characters. @itchyny #3249
  • Remove pow10/0 as it has been deprecated in glibc 2.27. Use exp10/0 instead. @itchyny #3059
  • Remove private (and undocumented) _nwise filter. @itchyny #3260

Language changes

  • Fix precedence of binding syntax against unary and binary operators. Also, allow some expressions as object values. @itchyny #3053 #3326

    • This is a breaking change that may change the output of filters with binding syntax as follows.
    $ jq -nc '[-1 as $x | 1,$x]'
[1,-1]    # previously, [-1,-1]
$ jq -nc '1 | . + 2 as $x | -$x'
-3        # previously, -1
$ jq -nc '{x: 1 + 2, y: false or true, z: null // 3}'
{"x":3,"y":true,"z":3}    # previously, syntax error

  • Support Tcl-style multiline comments. @emanuele6 #2989

    #!/bin/sh --
# Can be use to do shebang scripts.
# Next line will be seen as a comment be of the trailing backslash. \
exec jq ...
# this jq expression will result in [1]
[
  1,
  # \
  2
]

  • Fix foreach not to break init backtracking with DUPN. @kanwren #3266

    $ jq -n '[1, 2] | foreach .[] as $x (0, 1; . + $x)'
1
3
2
4

  • Fix reduce/foreach state variable should not be reset each iteration. @itchyny #3205

    $ jq -n 'reduce range(5) as $x (0; .+$x | select($x!=2))'
8
$ jq -nc '[foreach range(5) as $x (0; .+$x | select($x!=2); [$x,.])]'
[[0,0],[1,1],[3,4],[4,8]]

  • Support CRLF line breaks in filters. @itchyny #3274

  • Improve performance of repeating strings. @itchyny #3272

Documentation changes

  • Switch the homepage to custom domain jqlang.org. @itchyny @owenthereal #3243
  • Make latest release instead of development version the default manual. @wader #3130
  • Add opengraph meta tags. @wader #3247
  • Replace jqplay.org with play.jqlang.org @owenthereal #3265
  • Add missing line from decNumber's licence to COPYING. @emanuele6 #3106
  • Various document improvements. @tsibley #3322, @itchyny #3240, @jhcarl0814 #3239, @01mf02 #3184, @thaliaarchi #3199, @NathanBaulch #3173, @cjlarose #3164, @sheepster1 #3105, #3103, @kishoreinvits #3042, @jbrains #3035, @thalman #3033, @SOF3 #3017, @wader #3015, @wllm-rbnt #3002

Build improvements

  • Fix build with GCC 15 (C23). @emanuele6 #3209
  • Fix build with -Woverlength-strings @emanuele6 #3019
  • Fix compiler warning type-limits in found_string. @itchyny #3263
  • Fix compiler error in jv_dtoa.c and builtin.c. @UlrichEckhardt #3036
  • Fix warning: a function definition without a prototype is deprecated. @itchyny #3259
  • Define _BSD_SOURCE in builtin.c for OpenBSD support. @itchyny #3278
  • Define empty JV_{,V}PRINTF_LIKE macros if __GNUC__ is not defined. @emanuele6 #3160
  • Avoid ctype.h abuse: cast char to unsigned char first. @riastradh #3152
  • Remove multiple calls to free when successively calling jq_reset. @Sameesunkaria #3134
  • Enable IBM z/OS support. @sachintu47 #3277
  • Fix insecure RUNPATH. @orbea #3212
  • Avoid zero-length calloc. @itchyny #3280
  • Move oniguruma and decNumber to vendor directory. @itchyny #3234

Test improvements

  • Run tests in C locale. @emanuele6 #3039
  • Improve reliability of NO_COLOR tests. @dag-erling #3188
  • Improve shtest not to fail if JQ_COLORS and NO_COLOR are already set. @SArpnt #3283
  • Refactor constant folding tests. @itchyny #3233
  • Make tests pass when --disable-decnum. @nicowilliams 6d02d53f51
  • Disable Valgrind by default during testing. @itchyny #3269

1.7.1

Security

  • CVE-2023-50246: Fix heap buffer overflow in jvp_literal_number_literal
  • CVE-2023-50268: fix stack-buffer-overflow if comparing nan with payload

CLI changes

  • Make the default background color more suitable for bright backgrounds. @mjarosie @taoky @nicowilliams @itchyny #2904
  • Allow passing the inline jq script after --. @emanuele6 #2919
  • Restrict systems operations on OpenBSD and remove unused mkstemp. @klemensn #2934
  • Fix possible uninitialised value dereference if jq_init() fails. @emanuele6 @nicowilliams #2935

Language changes

  • Simplify paths/0 and paths/1. @asheiduk @emanuele6 #2946
  • Reject U+001F in string literals. @torsten-schenk @itchyny @wader #2911
  • Remove unused nref accumulator in block_bind_library. @emanuele6 #2914
  • Remove a bunch of unused variables, and useless assignments. @emanuele6 #2914
  • main.c: Remove unused EXIT_STATUS_EXACT option. @emanuele6 #2915
  • Actually use the number correctly casted from double to int as index. @emanuele6 #2916
  • src/builtin.c: remove unnecessary jv_copy-s in type_error/type_error2. @emanuele6 #2937
  • Remove undefined behavior caught by LLVM 10 UBSAN. @Gaelan @emanuele6 #2926
  • Convert decnum to binary64 (double) instead of decimal64. This makes jq behave like the JSON specification suggests and more similar to other languages. @wader @leonid-s-usov #2949
  • Fix memory leaks on invalid input for ltrimstr/1 and rtrimstr/1. @emanuele6 #2977
  • Fix memory leak on failed get for setpath/2. @emanuele6 #2970
  • Fix nan from json parsing also for nans with payload that start with 'n'. @emanuele6 #2985
  • Allow carriage return characters in comments. @emanuele6 #2942 #2984

Documentation changes

  • Generate links in the man page. @emanuele6 #2931
  • Standardize arch types to AMD64 & ARM64 from index page download dropdown. @owenthereal #2884

libjq

  • Add extern C for C++. @rockwotj #2953

Build and test changes

  • Fix incorrect syntax for checksum file. @kamontat @wader #2899
  • Remove -dirty version suffix for windows release build. @itchyny #2888
  • Make use of od in tests more compatible. @nabijaczleweli @emanuele6 @nicowilliams #2922
  • Add dependabot. @yeikel #2889
  • Extend fuzzing setup to fuzz parser and JSON serializer. @DavidKorczynski @emanuele6 #2952
  • Keep releasing executables with legacy names. @itchyny #2951

1.7

After a five year hiatus we're back with a GitHub organization, with new admins and new maintainers who have brought a great deal of energy to make a long-awaited and long-needed new release. We're very grateful for all the new owners, admins, and maintainers. Special thanks go to Owen Ou (@owenthereal) for pushing to set up a new GitHub organization for jq, Stephen Dolan (@stedolan) for transferring the jq repository to the new organization, @itchyny for doing a great deal of work to get the release done, Mattias Wadman (@wader) and Emanuele Torre (@emanuele6) for many PRs and code reviews. Many others also contributed PRs, issues, and code reviews as well, and you can find their contributions in the Git log and on the closed issues and PRs page.

Since the last stable release many things have happened:

  • jq now lives at https://github.com/jqlang
  • New maintainers, admins, and owners have been recruited.
  • NEWS file is replaced by NEWS.md with Markdown format. @wader #2599
  • CI, scan builds, release, website builds etc now use GitHub actions. @owenthereal @wader @itchyny #2596 #2603 #2620 #2723
  • Lots of documentation improvements and fixes.
  • Website updated with new section search box, better section ids for linking, dark mode, etc. @itchyny #2628
  • Release builds for:
    • Linux amd64, arm64, armel, armhf, i386, mips, mips64, mips64el, mips64r6, mips64r6el, mipsel, mipsr6, mipsr6el, powerpc, ppc64el, riscv64 and s390x
    • macOS amd64 and arm64
    • Windows i386 and amd64
    • Docker linux/386, linux/amd64, linux/arm64, linux/mips64le, linux/ppc64le, linux/riscv64 and linux/s390x
    • More details see @owenthereal #2665
  • Docker images are now available from ghcr.io/jqlang/jq instead of Docker Hub. @itchyny #2652 #2686
  • OSS-fuzz. @DavidKorczynski #2760 #2762

Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.6...jq-1.7 but here are some highlights:

CLI changes

  • Make object key color configurable using JQ_COLORS environment variable. @itchyny @haguenau @ericpruitt #2703

    # this would make "field" bold yellow (`1;33`, the last value)
$ JQ_COLORS="0;90:0;37:0;37:0;37:0;32:1;37:1;37:1;33" ./jq -n '{field: 123}'
{
  "field": 123
}

  • Change the default color of null to Bright Black. @itchyny #2824

  • Respect NO_COLOR environment variable to disable color output. See https://no-color.org for details. @itchyny #2728

  • Improved --help output. Now mentions all options and nicer order. @itchyny @wader #2747 #2766 #2799

  • Fix multiple issues of exit code using --exit-code/-e option. @ryo1kato #1697

    # true-ish last output value exits with zero
$ jq -ne true ; echo $?
true
0
# false-ish last output value (false and null) exits with 1
$ jq -ne false ; echo $?
false
1
# no output value exists with 4
$ jq -ne empty ; echo $?
4

  • Add --binary/-b on Windows for binary output. To get \n instead of \r\n line endings. @nicowilliams 0dab2b1

  • Add --raw-output0 for NUL (zero byte) separated output. @asottile @pabs3 @itchyny #1990 #2235 #2684

    # will output a zero byte after each output
$ jq -n --raw-output0 '1,2,3' | xxd
00000000: 3100 3200 3300                           1.2.3.
# can be used with xargs -0
$ jq -n --raw-output0 '"a","b","c"' | xargs -0 -n1
a
b
c
$ jq -n --raw-output0 '"a b c", "d\ne\nf"' | xargs -0 printf '[%s]\n'
[a b c]
[d
e
f]
# can be used with read -d ''
$ while IFS= read -r -d '' json; do
>   jq '.name' <<< "$json"
> done < <(jq -n --raw-output0 '{name:"a b c"},{name:"d\ne\nf"}')
"a b c"
"d\ne\nf"
# also it's an error to output a string containing a NUL when using NUL separator
$ jq -n --raw-output0 '"\u0000"'
jq: error (at <unknown>): Cannot dump a string containing NUL with --raw-output0 option

  • Fix assert crash and validate JSON for --jsonarg. @wader #2658

  • Remove deprecated --argfile option. @itchyny #2768

  • Enable stack protection. @nicowilliams #2801

Language changes

  • Use decimal number literals to preserve precision. Comparison operations respects precision but arithmetic operations might truncate. @leonid-s-usov #1752

    # precision is preserved
$ echo '100000000000000000' | jq .
100000000000000000
# comparison respects precision (this is false in JavaScript)
$ jq -n '100000000000000000 < 100000000000000001'
true
# sort/0 works
$ jq -n -c '[100000000000000001, 100000000000000003, 100000000000000004, 100000000000000002] | sort'
[100000000000000001,100000000000000002,100000000000000003,100000000000000004]
# arithmetic operations might truncate (same as JavaScript)
$ jq -n '100000000000000000 + 10'
100000000000000020

  • Adds new builtin pick(stream) to emit a projection of the input object or array. @pkoppstein #2656 #2779

    $ jq -n '{"a": 1, "b": {"c": 2, "d": 3}, "e": 4} | pick(.a, .b.c, .x)'
{
  "a": 1,
  "b": {
    "c": 2
  },
  "x": null
}

  • Adds new builtin debug(msgs) that works like debug but applies a filter on the input before writing to stderr. @pkoppstein #2710

    $ jq -n '1 as $x | 2 | debug("Entering function foo with $x == \($x)", .) | (.+1)'
["DEBUG:","Entering function foo with $x == 1"]
["DEBUG:",2]
3
$ jq -n '{a: 1, b: 2, c: 3} | debug({a, b, sum: (.a+.b)})'
["DEBUG:",{"a":1,"b":2,"sum":3}]
{
  "a": 1,
  "b": 2,
  "c": 3
}

  • Adds new builtin scan($re; $flags). Was documented but not implemented. @itchyny #1961

    # look for pattern "ab" in "abAB" ignoring casing
$ jq -n '"abAB" | scan("ab"; "i")'
"ab"
"AB"

  • Adds new builtin abs to get absolute value. This potentially allows the literal value of numbers to be preserved as length and fabs convert to float. @pkoppstein #2767

  • Allow if without else-branch. When skipped the else-branch will be . (identity). @chancez @wader #1825 #2481

    # convert 1 to "one" otherwise keep as is
$ jq -n '1,2 | if . == 1 then "one" end'
"one"
2
# behaves the same as
$ jq -n '1,2 | if . == 1 then "one" else . end'
"one"
2
# also works with elif
$ jq -n '1,2,3 | if . == 1 then "one" elif . == 2 then "two" end
"one"
"two"
3

  • Allow use of $binding as key in object literals. @nicowilliams 8ea4a55

    $ jq -n '"a" as $key | {$key: 123}'
{
  "a": 123
}
# previously parentheses were needed
$ jq -n '"a" as $key | {($key): 123}'
{
  "a": 123
}

  • Allow dot between chained indexes when using .["index"] @nicowilliams #1168

    $ jq -n '{"a": {"b": 123}} | .a["b"]'
123
# now this also works
$ jq -n '{"a": {"b": 123}} | .a.["b"]'
123

  • Allow dot for chained value iterator .[], .[]? @wader #2650

    $ jq -n '{"a": [123]} | .a[]'
123
# now this also works
$ jq -n '{"a": [123]} | .a.[]'
123

  • Fix try/catch catches more than it should. @nicowilliams #2750

  • Speed up and refactor some builtins, also remove scalars_or_empty/0. @muhmuhten #1845

  • Now halt and halt_error exit immediately instead of continuing to the next input. @emanuele6 #2667

  • Fix issue converting string to number after previous convert error. @thalman #2400

  • Fix issue representing large numbers on some platforms causing invalid JSON output. @itchyny #2661

  • Fix deletion using assigning empty against arrays. @itchyny #2133

    # now this works as expected, filter out all values over 2 by assigning empty
$ jq -c '(.[] | select(. >= 2)) |= empty' <<< '[1,5,3,0,7]'
[1,0]

  • Allow keywords to be used as binding name in more places. @emanuele6 #2681

  • Allow using nan as NaN in JSON. @emanuele6 #2712

  • Expose a module's function names in modulemeta. @mrwilson #2837

  • Fix contains/1 to handle strings with NUL. @nicowilliams 61cd6db

  • Fix stderr/0 to output raw text without any decoration. @itchyny #2751

  • Fix nth/2 to emit empty on index out of range. @itchyny #2674

  • Fix implode to not assert and instead replace invalid Unicode codepoints. @wader #2646

  • Fix indices/1 and rindex/1 in case of overlapping matches in strings. @emanuele6 #2718

  • Fix sub/3 to resolve issues involving global search-and-replace (gsub) operations. @pkoppstein #2641

  • Fix significand/0, gamma/0 and drem/2 to be available on macOS. @itchyny #2756 #2775

  • Fix empty regular expression matches. @itchyny #2677

  • Fix overflow exception of the modulo operator. @itchyny #2629

  • Fix string multiplication by 0 (and less than 1) to emit empty string. @itchyny #2142

  • Fix segfault when using libjq and threads. @thalman #2546

  • Fix constant folding of division and reminder with zero divisor. @itchyny #2797

  • Fix error/0, error/1 to throw null error. @emanuele6 #2823

  • Simpler and faster transpose. @pkoppstein #2758

  • Simple and efficient implementation of walk/1. @pkoppstein #2795

  • Remove deprecated filters leaf_paths, recurse_down. @itchyny #2666

Previous releases

Release history

  • jq version 1.6 was released on Fri Nov 2 2018
  • jq version 1.5 was released on Sat Aug 15 2015
  • jq version 1.4 was released on Mon Jun 9 2014
  • jq version 1.3 was released on Sun May 19 2013
  • jq version 1.2 was released on Thu Dec 20 2012
  • jq version 1.1 was released on Sun Oct 21 2012
  • jq version 1.0 was released on Sun Oct 21 2012

New features in 1.6 since 1.5:

  • Destructuring Alternation

  • New Builtins:

    • builtins/0
    • stderr/0
    • halt/0, halt_error/1
    • isempty/1
    • walk/1
    • utf8bytelength/1
    • localtime/0, strflocaltime/1
    • SQL-style builtins
    • and more!

  • Add support for ASAN and UBSAN

  • Make it easier to use jq with shebangs (8f6f28c)

  • Add $ENV builtin variable to access environment

  • Add JQ_COLORS env var for configuring the output colors

New features in 1.5 since 1.4:

  • regular expressions (with Oniguruma)

  • a library/module system

  • many new builtins

    • datetime builtins
    • math builtins
    • regexp-related builtins
    • stream-related builtins (e.g., all/1, any/1)
    • minimal I/O builtins (inputs, debug)

  • new syntactic features, including:

    • destructuring (. as [$first, $second] | ...)
    • try/catch, generalized ? operator, and label/break
    • foreach
    • multiple definitions of a function with different numbers of arguments

  • command-line arguments

    • --join-lines / -j for raw output
    • --argjson and --slurpfile
    • --tab and --indent
    • --stream (streaming JSON parser)
    • --seq (RFC7464 JSON text sequence)
    • --run-tests improvements

  • optimizations:

    • tail-call optimization
    • reduce and foreach no longer leak a reference to .

New features in 1.4 since 1.3:

  • command-line arguments

    • jq --arg-file variable file
    • jq --unbuffered
    • jq -e / --exit-status (set exit status based on outputs)
    • jq -S / --sort-keys (now jq no longer sorts object keys by default

  • syntax

    • .. -> like // in XPath (recursive traversal)
    • question mark (e.g., .a?) to suppress errors
    • ."foo" syntax (equivalent to .["foo"])
    • better error handling for .foo
    • added % operator (modulo)
    • allow negation without requiring extra parenthesis
    • more function arguments (up to six)

  • filters:

    • any, all
    • iterables, arrays, objects, scalars, nulls, booleans, numbers, strings, values

  • string built-ins:

    • split
    • join (join an array of strings with a given separator string)
    • ltrimstr, rtrimstr
    • startswith, endswith
    • explode, implode
    • fromjson, tojson
    • index, rindex, indices

  • math functions

    • floor, sqrt, cbrt, etcetera (depends on what's available from libm)

  • libjq -- a C API interface to jq's JSON representation and for running jq programs from C applications

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