Releases · google/flatbuffers

Release list

v25.12.19-2026-02-06-03fffb2 Latest

Latest

github-actions released this 06 Feb 22:26

v25.12.19-2026-02-06-03fffb2

03fffb2

Fix for rules-swift compatibility

Assets 8

v25.12.19

dbaileychess released this 19 Dec 23:15

v25.12.19

7e16302

What's Changed

docs: clean up whitespace and fix typo in tutorial.md by @daynual in #8695
Correct span and non-span versions of ToArray() and ToArrayPadded() methods by @vsmcea in #8734
[Swift] Fixes test failing on macOS when using URL(fileURLWithPath:isDirectory) by @mustiikhalil in #8742
treat npm_typescript as a dev dependency by @dws in #8719
[Dart] Fix union unpacking by @jakobkordez in #8748
[Dart] Fix struct vector ordering in pack function by @jakobkordez in #8747
Add conditional check by @coder7695 in #8736
[Dart] Refactor lazy list unpacking by @jakobkordez in #8746
Prevent make_span from working with vectors and arrays of pointers by @are-you-tilted-already in #8735
Swap the dependency of CreateX and X::Pack object API functions. by @cosmith-nvidia in #8754
[Swift] Implements FlatbuffersVector which confirms to RandomAccessCollection by @mustiikhalil in #8752
Fix --gen-compare to not generate comparators for native types. by @cosmith-nvidia in #8681
Support native_type for tables when using the C++ object API. by @cosmith-nvidia in #8668
[Swift] Improves the performance creating strings by @mustiikhalil in #8772
[Docs] Update swift supported features by @mustiikhalil in #8769
[Swift] Bump minimum supported version of swift to 5.10 by @mustiikhalil in #8758
[Swift] Inline arrays by @mustiikhalil in #8755
Replace usage of make_unique with unique_ptr for cpp11 by @fliiiix in #8763
Fix Issue #8653 - Python vtables not considering object size by @jtdavis777 in #8683
[C++] Add Vector64 specialization for std::vector<bool> by @jtdavis777 in #8757
Stop calling setup.py in release CI by @jtdavis777 in #8771
[lua] Dont' crash on a fbs file with no root table by @jtdavis777 in #8770
Revival of GH-8285: fix: remove a single type hint to retain python 2.7.x compatibility by @jtdavis777 in #8799
[Python] Add unit test for github issue 8653 by @satur9nine in #8786
Size verifier fix 2 by @fergushenderson in #8740
Fix issue #8389: any nonzero byte is truthy by @bkietz in #8690
Add Dart changelog entry for v25.9.23 by @vaind in #8785
[dart] fix bug which generated wrong code by @fawdlstty in #8780
add assert to fix GCC warning on Ubuntu 24.04 LTS by @gafferongames in #8804
chore: fix quick start typos by @Homeblest in #8520
[Java] Generate Longs from uint enums by @nevi-me in #8727
[Java] Add notify to Java keywords by @nevi-me in #8724
More robust C++20 check by @cyyever in #8631
[Dart] Fix dart object api test by @jakobkordez in #8751
feat: library definition for PlatformIO by @obones in #8261
Use macos-15-intel not macos-latest-large for Intel macOS by @kou in #8777
[C++] Fix vtable deduplication for 64-bit buffers >2GB by @gowsiany in #8591
Bump js-yaml from 4.1.0 to 4.1.1 in the npm_and_yarn group across 1 directory by @dependabot[bot] in #8779
TypeScript: read vtable entries as uint16 by @jtbandes in #8435
[fuzzer] Adds code generation target. by @coder7695 in #8795
[CI] Revert back to using swift-actions by @mustiikhalil in #8806
[Python] Fix inconsistent creator function naming in generated code by @peter-soos in #8792
Remove legacy Conan recipe and update documentation by @uilianries in #8712
[Python] Fix generating init.py for invalid path by @fliiiix in #8810
[Python] Optimize Builder startup: lazy sharedStrings and fast vtable init by @satur9nine in #8807
Fix platform ifdefs for locale independent str functions by @jamesr in #8678
fix CScript string.compare by @whitecostume in #8547
[Go] add BenchmarkBuildAllocations by @jdemeyer in #8287
[Go] Write required string fields into the buffer when using Object API by @razvanalex in #8402
[Java] Use Table's fully qualified path by @nevi-me in #8729
[Python] Optimize Offset/Pad/Prep: use cached head and slicing by @satur9nine in #8808
[CI] Migrating to swift Wasm on for Github actions by @mustiikhalil in #8814
Modernize GitHub CI actions by @fliiiix in #8812
[Swift] Flexbuffers tests for Wasm by @mustiikhalil in #8815
CI: Fix typo in version by @fliiiix in #8817
Handle missing output directory better by @fliiiix in #8764
Improves Rust code generation by @csmulhern in #8564
update labeler.yml to v5+ format by @jtdavis777 in #8818
fix(idl_gen_rust): Fix lifetime warning added in Rust 1.89 by @RobJellinghaus in #8709
[rust] add deser support for enum type by @fawdlstty in #8803
rust: impl TrustedLen for VectorIter by @riptl in #8797
Implement --file-names-only by @jtdavis777 in #8788
Add .NET Standard 2.0 to documentation by @jtdavis777 in #8819
Fix(ts): escape doc comment terminator in generated JSDoc by @Ky0toFu in #8820
Add --file-names-only to flatc.md by @jtdavis777 in #8821
Fixes unused imports in Rust code generator by @csmulhern in #8828
Fix docs: typo & dead link by @kendegemaro in #8826
Fix TS object API generation of schema containing array of enumeration having no zero default by @jtdavis777 in #8832
Fix vector of table with naked ptr by @jtdavis777 in #8830
Deprecate --ts-flat-files and --ts-entry-points by @jtdavis777 in #8831
chore: switch package to license expression by @thompson-tomo in #8840
Arrays of Enumerations without a value for 0 are no longer valid by @jtdavis777 in #8836
Upgrade Kotlin to MacOS 15 by @jtdavis777 in #8845
[TS] Flexbuffers root vector fix by @jtdavis777 in #8847
[Kotlin] Fix nullability of generated Kotlin ByteBuffer accessors by @souma987 in #8844
[Kotlin] Fix casing in generated Kotlin struct constructor function by @souma987 in #8849
Remove progaurd-rules.pro by @dbaileychess in #8866
Run clang-format by @dbaileychess in #8865
Add --gen-absl-hash option to generate AbslHashValue for structs. by @dbaileychess in #8868
Default Vector Support C++ by @dbaileychess in #8870
FlatBuffers Version 25.12.19 by @dbaileychess in #8871

New Contributors

@daynual made their first contribution in #8695
@vsmcea made their first contribution in #8734
@dws made their first contribution in #8719
@jakobkordez made their first contribution in #8748
@coder7695 made their first contribution in #8736
@are-you-tilted-already made their first contribution in #8735
*...

Contributors

jtbandes, kou, and 36 other contributors

Assets 7

FlatBuffers Version 25.9.23

dbaileychess released this 24 Sep 05:25

v25.9.23

1872409

What's Changed

[Swift] Adds new API to reduce memory copying within swift by @mustiikhalil in #8484
[C++] Fixes access to union members when generating code with options "--cpp-field-case-style upper" and "--gen-object-api" by @Ailuridae in #8447
[C++] Fix dereference operator of VectorIterator to structures by @admo in #8425
[TS] Enum value default null by @bjornharrtell in #8619
[Swift] Flexbuffers native swift port by @mustiikhalil in #8577
[TS] Upgrade deps by @bjornharrtell in #8620
Avoid outputting Python files for already generated types by @akb825 in #8500
Bugfix: grpc python code generation location and file suffix by @fliiiix in #8359
Decode bytes to strings in Python Object API by @sethraymond in #8551
[Swift] Adds windows support by @mustiikhalil in #8622
[TS] Fix relative paths for exports by @trumully in #8517
[CI] Moves swift actions to use next by @mustiikhalil in #8632
Bugfix/new decode flag by @fliiiix in #8634
Use correct default type for str by @fliiiix in #8623
Fixed typo in quick_start.md by @Dylan-Gallagher in #8592
Fix typo in code comment by @fliiiix in #8549
Update README logo path by @gio3k in #8602
[Python] Avoid include own type by @fliiiix in #8625
[Swift] Fixes inlining & module importing by @mustiikhalil in #8637
Fix Enum type definition by @fliiiix in #8624
Fix JavaScript typo in mkdocs.yml by @luksab in #8515
[Python] Avoid double flatbuffers include in pyi files by @fliiiix in #8626
doc: PHP fread typo by @rogeriolino in #8566
[Swift] Allows keepingCapacity for the underlying memory by @mustiikhalil in #8643
[Python] Enhance object API __init__ with typed keyword arguments by @crackcomm in #8615
Fix start page: Backwards and Forwards Compatibility by @fliiiix in #8645
Support Rust edition 2024 by @aleb in #8638
Bugfix eq for numpy data types by @fliiiix in #8646
[Swift] Moves capacity from storage to struct by @mustiikhalil in #8650
[Swift] Fixes load from misaligned raw pointer by @mustiikhalil in #8649
Fix native_type non-native_inline fields, add tests by @souryavarenya in #8655
Remove stray required in docs by @fliiiix in #8663
Doc fix verifier example code for cpp by @fliiiix in #8664
docs: fix broken link in readme by @Nugine in #8656
Fix small typo in word JavaScript (JavasScript -> JavaScript) by @isaiahpettingill in #8530
Add Rust reflection documentation by @candysonya in #8536
CMakeLists: include(CheckSymbolExists) so check_symbol_exists() will work by @vzjc in #8580
Fix: Actually call ValidateOptions by @thejtshow in #8665
Update TS codegen - change getFullyQualifiedName return type from string to string literal by @rametta in #8421
[CI] Fixes swift tests on windows by @mustiikhalil in #8685
fix(go/grpc): avoid panic on short FlatBuffers input by @thevilledev in #8684
Bugfix: grpc supress incorrect warning by @fliiiix in #8669
gRPC callbackService support added by @shankeleven in #8666
[C#] Fix union verifier by @TorsteinTenstadNorsonic in #8593
Add bounds checking to a C# method where it was missing by @CurtHagenlocher in #8673
[C#] Improve Span<> utilization by @bigjt-dev in #8588
[C#] Added ToSizedArrayPadded(int padLeft, int padRight) to ByteBuffers to avoid unnecessary copying. by @petersvp in #8658
fix(idl_gen_ts): bool to number conversion in mutable API (#8676) by @nurbo in #8677
[Swift] Fixes windows CI by @mustiikhalil in #8702
Use the Google Style for clang-format without exceptions by @dbaileychess in #8706
bulk code format fix by @dbaileychess in #8707
Bump the npm_and_yarn group across 1 directory with 2 updates by @dependabot[bot] in #8704
FlatBuffers Version 25.9.23 by @dbaileychess in #8708

New Contributors

@Ailuridae made their first contribution in #8447
@sethraymond made their first contribution in #8551
@trumully made their first contribution in #8517
@Dylan-Gallagher made their first contribution in #8592
@gio3k made their first contribution in #8602
@luksab made their first contribution in #8515
@rogeriolino made their first contribution in #8566
@crackcomm made their first contribution in #8615
@aleb made their first contribution in #8638
@souryavarenya made their first contribution in #8655
@Nugine made their first contribution in #8656
@isaiahpettingill made their first contribution in #8530
@vzjc made their first contribution in #8580
@thejtshow made their first contribution in #8665
@rametta made their first contribution in #8421
@thevilledev made their first contribution in #8684
@shankeleven made their first contribution in #8666
@TorsteinTenstadNorsonic made their first contribution in #8593
@bigjt-dev made their first contribution in #8588
@petersvp made their first contribution in #8658
@nurbo made their first contribution in #8677

Full Changelog: v25.2.10...v25.9.23

Contributors

bjornharrtell, crackcomm, and 28 other contributors

Assets 7

v25.2.10

dbaileychess released this 11 Feb 04:26

v25.2.10

1c51462

What's Changed

Rust reflection: simplify dependencies, fix Android build compatibility by @dextero in #8512
[Swift] Adds swift 6 to the build matrix & bumps swift to 5.9 by @mustiikhalil in #8414
Upgrade dependencies by @mering in #8516

New Contributors

@dextero made their first contribution in #8512

Full Changelog: v25.1.24...v25.2.10

Contributors

dextero, mustiikhalil, and mering

Assets 7

v25.1.24

github-actions released this 25 Jan 00:40

v25.1.24

0312061

What's Changed

Also use rules_bazel_bazel_integration_test dependency with Bzlmod by @mering in #8498
Add bazel ci by @dbaileychess in #8497
Fix Bzlmod by @mering in #8503
Fix Bazel ts support by @mering in #8499
Improve Bazel CI by @mering in #8502
Fix npm bzlmod by @mering in #8506
Add support for Bazel 7 and 8 in Bazel CI by @mering in #8505
Test external modules explicitly in CI by @mering in #8507
Bump the versions of all aspect Bazel dependencies by @sbarfurth in #8508
Remove Bazel WORKSPACE setup. by @mering in #8509
Add Bazel instructions to docs by @mering in #8510
[C++] Avoid adding semicolon after a statement by @tzik in #8488

New Contributors

@sbarfurth made their first contribution in #8508

Full Changelog: v25.1.21...v25.1.24

Contributors

tzik, dbaileychess, and 2 other contributors

Assets 7

v25.1.21

github-actions released this 22 Jan 01:34

v25.1.21

df287ee

What's Changed

Add new Docs source files by @dbaileychess in #8461
docs.yml Add workflow for updating docs by @dbaileychess in #8462
docs.yml enable for pushes to main branch by @dbaileychess in #8463
contributions.md Add doc about how to contribute to flatbuffers by @dbaileychess in #8464
CNAME: add custom domain by @dbaileychess in #8465
[Swift] Bug fix for verifier where its being copied by @mustiikhalil in #8451
flatc.md Add more documentation by @dbaileychess in #8467
quick_start.md: Add quick start guide by @dbaileychess in #8469
Add Annotating Docs by @dbaileychess in #8470
mkdocs.yml add footer and other info by @dbaileychess in #8471
schema.md Fixed some warnings by @dbaileychess in #8472
Fix crash for TypeScript enum in substruct by @fergushenderson in #8430
fix typo in tutorial by @shynur in #8476
A couple of small updates to the docs by @srinarasi in #8477
Add imports for bazel by @dbaileychess in #8486
Rust full reflection by @candysonya in #8102
Fix a minor typo in flatc --help output by @musicinmybrain in #8468
Add missing headers to runtime_cc target by @mering in #8492
Use Label() to resolve repo name by @mering in #8493
Use rules_bazel_integration_test to download Bazel binary by @mering in #8495
Add support for Bzlmod by @mering in #8494

New Contributors

@shynur made their first contribution in #8476
@srinarasi made their first contribution in #8477
@candysonya made their first contribution in #8102
@mering made their first contribution in #8492

Full Changelog: v24.12.23...v25.1.21

Contributors

dbaileychess, srinarasi, and 6 other contributors

Assets 7

v24.12.23

dbaileychess released this 23 Dec 21:11

v24.12.23

a2cd1ea

What's Changed

Avoid ODR violations with flatbuffers::Verifier. by @fergushenderson in #8274
Improve error handling on Object API name collision. by @mbeards in #8275
[Kotlin] Add workflow to release kotlin multiplatform version by @paulovap in #8014
Remove npm/rules_js dependency for C++ only use cases by @philsc in #7990
[Python] Fix various codegen problems by @anton-bobukh in #8292
[gRPC] Add new options to control the gRPC code generation by @anton-bobukh in #8298
Update build.yml to ubuntu-24.04 by @dbaileychess in #8319
Trying to fix bazel on macOS and Xcode 14.3 by @mustiikhalil in #8304
Update build.yml by @dbaileychess in #8321
Add missing opertors to VectorIterator by @Icantjuddle in #8309
[.NET] Add netstandard2.0 as target by @bjornharrtell in #8295
[Kotlin] Update to kotlin 1.9.10 by @paulovap in #8307
dart: Fix incorrect write in Float64 write method by @NotTsunami in #8290
Added automatic publishing to crates.io on publish by @rdelfin in #8263
Update release.sh by @dbaileychess in #8322
Fix operator== for flatbuffers::optional by @mikudehuane in #8223
[C++] Make code compile with -Wfloat-equal by @fliiiix in #8221
[C++] Allow using FLATBUFFERS_MIN_BUFFER_SIZE in other namespaces by @dominiklohmann in #8229
[Python] Generate .pyi stub files when --python-typing is on. by @anton-bobukh in #8312
[Swift] Sets Swift minimum support to 5.8 by @mustiikhalil in #8228
[C++] Update the validator to skip structs in namespaces other than the current one. by @anton-bobukh in #8324
[BinaryAnnotator] Add more options that control the generation of .afb files by @anton-bobukh in #8323
[Python] Render enums as Python IntEnum by @fliiiix in #8145
[gRPC] Update the code generator for Python to produce typed handlers by @anton-bobukh in #8326
Add parentheses in FLATBUFFERS_MAX_BUFFER_SIZE, FLATBUFFERS_MAX_64_BUFFER_SIZE to avoid preprocessor definition collision by @mspanc in #8377
Add "empty()" to vector by @alphalex-google in #8369
Remove unused comment and fix typo. by @lamtrinhdev in #8366
Upgrade Rust dependencies by @gschulze in #8372
[jumbo] Add begin()/end() to DetachedBuffer. by @pkasting in #8370
Add a unit test for odd-sized small structs (for #8117) by @nolen777 in #8363
Update libs.versions.toml by @mikhsol in #8387
docs: update README.md by @eltociear in #8383
Use actions/upload-artifact@v4 on CI by @aardappel in #8410
Attempt to fix Rust CI by @aardappel in #8411
[Swift] Fixes spelling mistake in the word position by @mustiikhalil in #8330
[Swift] Addresses a bug where verifier skips capacity when verifying ID on buffers by @mustiikhalil in #8413
[Swift] Updates CocoaPods author info & fixes bug with versioning not working as expected by @mustiikhalil in #8328
Update grpc-core version by @mikhsol in #8412
FlexBuffers: support "natural utf8" output in ToString by @aardappel in #8426
use ALIGN for Push::alignment in struct types by @bkietz in #8398
Removes 'size' and 'alignment' as Rust keywords by @csmulhern in #8139
dart: use enhanced enums by @vaind in #8313
[Swift] Improves vectors performance & arrays within lib by @mustiikhalil in #8415
FlatBuffers Version 24.12.23 by @dbaileychess in #8459

New Contributors

@fergushenderson made their first contribution in #8274
@Icantjuddle made their first contribution in #8309
@NotTsunami made their first contribution in #8290
@rdelfin made their first contribution in #8263
@mikudehuane made their first contribution in #8223
@dominiklohmann made their first contribution in #8229
@mspanc made their first contribution in #8377
@alphalex-google made their first contribution in #8369
@lamtrinhdev made their first contribution in #8366
@gschulze made their first contribution in #8372
@nolen777 made their first contribution in #8363
@mikhsol made their first contribution in #8387
@eltociear made their first contribution in #8383
@bkietz made their first contribution in #8398
@csmulhern made their first contribution in #8139

Full Changelog: v24.3.25...v24.12.23

Contributors

bjornharrtell, mspanc, and 24 other contributors

Assets 7

v24.3.25

github-actions released this 26 Mar 05:27

v24.3.25

595bf00

What's Changed

Fix License by @p0fi in #8253
Fix handling non null-terminated string_views in LookupByKey by @mpawlowski-eyeo in #8203

New Contributors

@p0fi made their first contribution in #8253
@mpawlowski-eyeo made their first contribution in #8203

Full Changelog: v24.3.7...v24.3.25

Contributors

p0fi and mpawlowski-eyeo

Assets 7

v24.3.7

github-actions released this 07 Mar 23:24

v24.3.7

6ff9e90

What's Changed

Add Kotlin multiplatform support by @paulovap in #7969
Add ForceVectorAlignment64 and test by @dbaileychess in #7977
[Kotlin] Add java source on benchmark module instead of using version… by @paulovap in #7978
Small optimization on "deserialization" and fix on benchmarks again by @paulovap in #7982
[Bazel] Fix gen_reflections for flatbuffers_ts_library by @jkuszmaul in #7981
various fixes by @dbaileychess in #7986
Make eslint less pedantic by @OptoCloud in #8012
Optional omission of Typescript entrypoint by @maxburke in #8057
Upgrade the bazel-related dependencies by @philsc in #8078
Fix BUILD.bazel style violations by @philsc in #8081
[TS] Allows object API to set 0 for a null-default scalar. by @jviel-beta in #7864
Fully qualify the offset type in FLATBUFFERS_VTABLE_UNDERLYING_TYPE by @anton-bobukh in #8094
[bazel] Update Platforms by @sgowroji in #8083
Bump google.golang.org/grpc from 1.39.0-dev to 1.53.0 in /grpc/examples/go/greeter/server by @dependabot in #8027
Upgrade rules_go by @comius in #8092
Bump google.golang.org/grpc from 1.35.0 to 1.53.0 in /grpc/examples/go/greeter/client by @dependabot in #8026
Bump google.golang.org/grpc from 1.35.0 to 1.53.0 in /grpc/examples/go/greeter/models by @dependabot in #8025
Fix nim workflow by @le-michael in #8098
[Swift] Overall Improvements by @mustiikhalil in #8061
Fix misalignment of small structs in a Vector (C++) by @bexcite in #7883
Add constexpr for bitmask operators by @xaphier in #8037
C++ strict conversion fixes for flatbuffer_builder.h (#8062) by @greenrobot in #8065
Fix compiling idl_gen_php.cpp against certain STLs by @reshilkin in #8067
Fix compiling idl_parser.cpp against certain STLs by @reshilkin in #8066
corrected a typo by @sthd in #8063
Return function to namespace by @reshilkin in #8068
TS: Add missing generated files by @bjornharrtell in #8075
Add const qualifier to non-mutated FlatbufferBuilder parameter by @Lukasdoe in #8101
Fix verification for C# unions by @CurtHagenlocher in #7970
[Rust] Add the Allocator trait for the builder API by @adsnaider in #8106
update flatbuffers java to be Android API level 23 compatible by @turbotoribio in #8158
Fix CI builds by @dbaileychess in #8161
chore: Dart 23.5.26 release by @vaind in #8160
Fix: detect c++ standard on MSVC for span by @assorted in #8155
Update Compiler.md docs by @fliiiix in #8153
Remove msvc pragma warning disable C4351 as it is undocumented by @Lukasdoe in #8124
Bump google.golang.org/grpc from 1.53.0 to 1.56.3 in /grpc/examples/go/greeter/models by @dependabot in #8130
Bump google.golang.org/grpc from 1.53.0 to 1.56.3 in /grpc/examples/go/greeter/server by @dependabot in #8132
Bump google.golang.org/grpc from 1.53.0 to 1.56.3 in /grpc/examples/go/greeter/client by @dependabot in #8131
Add help text to cmake git describe error message by @Lukasdoe in #8123
Fix spelling mistake in FlatBufferBuilder.cs doc comments by @peter-dye in #8120
Allow CreateString invocation with std::string_view by @reshilkin in #8069
Update build.yml by @dbaileychess in #8162
[Swift] Fixes forward offset verifiable objects within arrays & fixes failing tests by @mustiikhalil in #8135
Bump word-wrap from 1.2.3 to 1.2.4 by @dependabot in #8042
Add argument to FlatBufferToString for quotes around field names by @alresin in #8090
Update build.yml by @dbaileychess in #8163
[GO] compiles to much files by @tira-misu in #8118
Update testReadFromOtherLanguages test to also run on macOS by @mustiikhalil in #8044
Add absolute file names option to BFBS by @jamescourtney in #8055
[Swift] Push contiguous bytes by @wtholliday in #8157
Fix typo in CMakeLists.txt by @DoppelDe in #8167
[Swift] Add allowReadingUnalignedBuffers to most ByteBuffer init methods by @abandy in #8134
[Swift] Migrating benchmarks to a newer lib. by @mustiikhalil in #8168
Fix cmake build for old versions by @fliiiix in #8173
copy languages for conformance parser by @blindspotbounty in #8174
Fix python type annotation output when not enabled by @akb825 in #7983
[TS/JS] Upgrade dependencies by @bjornharrtell in #7996
Introduce convenient implicit operator string_view by @georgthegreat in #8181
[Python] Add clear method for builder reuse by @razvanalex in #8186
[TS/JS] Create byte vectors by @razvanalex in #8185
Target .NET Standard 2.1, .NET 6, .NET 8 only by @bjornharrtell in #8184