What's Changed

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

New Contributors

• @daynual made their first contribution in https://github.com/google/flatbuffers/pull/8695
• @vsmcea made their first contribution in https://github.com/google/flatbuffers/pull/8734
• @dws made their first contribution in https://github.com/google/flatbuffers/pull/8719
• @jakobkordez made their first contribution in https://github.com/google/flatbuffers/pull/8748
• @coder7695 made their first contribution in https://github.com/google/flatbuffers/pull/8736
• @are-you-tilted-already made their first contribution in https://github.com/google/flatbuffers/pull/8735
• @cosmith-nvidia made their first contribution in https://github.com/google/flatbuffers/pull/8754
• @satur9nine made their first contribution in https://github.com/google/flatbuffers/pull/8786
• @fawdlstty made their first contribution in https://github.com/google/flatbuffers/pull/8780
• @gafferongames made their first contribution in https://github.com/google/flatbuffers/pull/8804
• @Homeblest made their first contribution in https://github.com/google/flatbuffers/pull/8520
• @nevi-me made their first contribution in https://github.com/google/flatbuffers/pull/8727
• @cyyever made their first contribution in https://github.com/google/flatbuffers/pull/8631
• @obones made their first contribution in https://github.com/google/flatbuffers/pull/8261
• @kou made their first contribution in https://github.com/google/flatbuffers/pull/8777
• @gowsiany made their first contribution in https://github.com/google/flatbuffers/pull/8591
• @jtbandes made their first contribution in https://github.com/google/flatbuffers/pull/8435
• @peter-soos made their first contribution in https://github.com/google/flatbuffers/pull/8792
• @jamesr made their first contribution in https://github.com/google/flatbuffers/pull/8678
• @whitecostume made their first contribution in https://github.com/google/flatbuffers/pull/8547
• @RobJellinghaus made their first contribution in https://github.com/google/flatbuffers/pull/8709
• @riptl made their first contribution in https://github.com/google/flatbuffers/pull/8797
• @Ky0toFu made their first contribution in https://github.com/google/flatbuffers/pull/8820
• @kendegemaro made their first contribution in https://github.com/google/flatbuffers/pull/8826
• @thompson-tomo made their first contribution in https://github.com/google/flatbuffers/pull/8840
• @souma987 made their first contribution in https://github.com/google/flatbuffers/pull/8844

Full Changelog: https://github.com/google/flatbuffers/compare/v25.9.23...v25.12.19