onnx 1.22.0 on Python PyPI

ONNX v1.22.0 is now available with exciting new features! We would like to thank everyone who contributed to this release!
Please visit onnx.ai to learn more about ONNX and associated projects.

What's Changed

Breaking Changes and Deprecations

Swap qk_matmul_output_mode 1 & 2 to match computation order by @titaiwangms in #7913

Spec and Operator

Fix number of pad modes in doc_strings.cc by @assafpr in #7803
Add FlexAttention Op to ai.onnx.preview opset by @mshr-h in #7534
Fix Attention op softcap ordering: apply before mask/bias by @titaiwangms in #7867
Add LinearAttention and CausalConvWithState operators (Opset 27) by @tadani3 in #7950
feat(generator): extend Range operator with float16 and bfloat16 support (opset 27) by @andife in #7923

Reference Implementation

Fix missing 'mul' reduction in ScatterElements reference implementation by @zdryan in #7842
Fix QLinearMatMul output saturation by @karimbaidar in #7868
Fixed more bugs in the Scan reference op by @tadani3 in #7964

Utilities and Tools

Fix Slice shape inference crashes with SIGABRT on empty dimensions by @titaiwangms in #7738
Rename misleading input_rank param to input_dim_value in processSlice… by @titaiwangms in #7739
fix: Conv/Pool strides validation by @edgchen1 in #7764
fix: add input/output bounds checks in version converter adapter by @andife in #7813
Harden version conversion against malformed inputs by @andife in #7872
fix: add input rank checks in Gemm version converter adapters by @andife in #7880
Fix raw_data handling in version converter adapters by @cyyever in #7910
Fix checker to use len() instead of sys.getsizeof() for protobuf size check by @OmarAzizi in #7760
Add version macros by @cbourjau in #7918
Remove internal spec_to_yaml tool by @cbourjau in #7985
Address shape inference shortcomings by @yuslepukhin in #7997
Add unifyInputShape / unifyInputShapePrefix shape inference utilities by @gramalingam in #7999
Add operator+ and operator- for Dim by @gramalingam in #8000
Fix KeepAspectRatioHelper precision for scaled output dimensions by @elwhyjay in #8007
Fix heap buffer over-read in Conv/Pool shape inference for weight rank mismatch by @Copilot in #8037

Build, CI and Tests

Add update into main.yml by @titaiwangms in #7687
Update check_urls.yml by @andife in #7716
Update add_msvc_runtime_flag to work with MSVC_RUNTIME_LIBRARY by @Shadows-of-Fire in #7660
Try to fix renovate by @andife in #7742
fix upload; Update release_win.yml by @andife in #7728
Allow release CIs to run when a labeled PR receives new commits by @Copilot in #7741
Update pixi.{toml,lock} by @cbourjau in #7746
hash for googletest by @andife in #7765
Update RELEASE-MANAGEMENT.md by @andife in #7773
Update doc CIPipeline by @andife in #7782
use reviewdog to fix the pr_checks workflow by @andife in #7780
Update copilot-setup-steps.yml; persist-credentials: false by @andife in #7768
Update release_linux.yml; replace tag by hash by @andife in #7769
Fix pipeline src preview by @andife in #7787
Bump protobuf to v33.6 by @cyyever in #7517
fix pr_checks_post.yml by using the correct reporter in reviewdog by @andife in #7789
Skip very slow Python tests on Windows debug builds by @cbourjau in #7819
Fix cross-platform date command in CMakeLists.txt by @Chessing234 in #7816
Modify URL checker workflow permissions and action by @andife in #7832
fix additional input in workflow by @andife in #7834
fix: suppress unused-parameter warnings in try_kernel_contained_open by @andife in #7849
Pin GitHub Actions to immutable commit SHAs by @andife in #7852
Add wheels for Pyodide by @andife in #7847
Improve CodeQL config by @cyyever in #7870
integrate check-wheel-contents in CI workflows by @andife in #7846
feat: embed CycloneDX SBOM in wheel per PEP 770 by @andife in #7861
Fix CI link-checker issues by @cbourjau in #7909
fix: only download artifacts on workflow_dispatch in publish_release_build_to_pypi by @andife in #7912
topic: Allow overriding cmake build directory via environment variable by @WithEnoughCoffee in #7915
Ignore blocked links by @cbourjau in #7919
chore: improve Renovate config — cooldown, correct label, PR notes by @andife in #7922
Fix link-checker CI by @cbourjau in #7924
Update Python version matrix in release workflow; skip 3.13t for a gr… by @andife in #7932
Update Python versions in release workflow (remove 3.13t from testing) by @andife in #7934
Remove cpplint (superseded by clang-tidy) by @cbourjau in #7942
Add hard-failing zizmor lint and fix existing issues by @cbourjau in #7941
Remove redundant reuse-action by @cbourjau in #7943
Fix links (and thus CI error) by @cbourjau in #7946
CI: add labeled SLSA provenance test path and harden checkout credentials by @andife in #7951
Remove submodules option from lint workflow by @andife in #7958
Use cibuildwheel for all releases by @cbourjau in #7901
Fix generated md files by @cbourjau in #7973
Use Renovate to update pixi lock file once a month by @cbourjau in #7980
fix: revert accidental protobuf v33.6 bump and remove requirements-release_build.txt by @andife in #7982
Run pip check to validate consistency of pyproject-dependencies with environment by @cbourjau in #7960
Build correct pyemscripten wheel for PyPI by @cbourjau in #7998
Use same 25.1 protobuf for all releases and simplify sbom creation by @cbourjau in #7995
fix: prevent cmake parallel build race in proto generation by @andife in #8003
fix: correct argument order in ONNX_OPERATOR_SET_SCHEMA_DEBUG_VARIABLE macro call by @andife in #8004
Enable MSVC warnings by @justinchuby in #7562
Fix/sdist missing SBOM cdx json by @andife in #8010
Follow up for scikit-build-core migration by @take-cheeze in #8017
Run lints also on Windows by @cbourjau in #8014
Fix xcode build by @cbourjau in #8056

Documentation

bump VERSION_NUMBER in main branch by @Sunny-Anand in #7712
remove link for check_urls action by @Sunny-Anand in #7713
bump version for defs operator and schema after main version bump by @Sunny-Anand in #7715
Add Security Assurance Case document by @andife in #7679
Add CLAUDE.md with project guidelines for Claude Code by @cyyever in #7666
Update RELEASE-MANAGEMENT.md by @andife in #7762
Update RELEASE-MANAGEMENT.md by @andife in #7774
Fix documentation typos and grammar errors in API docs by @Chessing234 in #7809
Add ONNX Incident Response Plan document by @andife in #7830
Add skill files for new op, op updates, function body definition, type and shape inference by @gramalingam in #7878
Fix reuse by @andife in #7899
Execute code snippets in PythonAPIOverview.md (+ fixes) by @cbourjau in #7856
Extend release compatibility matrix back to ONNX 1.10 by @andife in #7929
Update RELEASE-MANAGEMENT.md by @andife in #7976
Update RELEASE-MANAGEMENT.md by @andife in #7977
Render literal < in Cast FLOAT8E8M0 docs table by @Copilot in #7936
Fix escaped default attribute values in generated operator docs by @Copilot in #8002

Other Changes

Improve external data file handling by @titaiwangms in #7686
Extend parser/printer to support quoted strings as symbolic dims by @Copilot in #7699
Improve external data file handling - onnx.load by @titaiwangms in #7717
docs: fix window size type constraint wording by @tsubasakong in #7719
Improve spec_to_yaml.py by @cyyever in #7734
Enhance ONNX_HARDENING with OpenSSF-recommended compiler flags by @cyyever in #7724
Fix various issues by @cyyever in #7737
Enable more ruff rules by @cyyever in #7748
Merged Fix object state corruption and DoS via ExternalDataInfo attribute injection by @titaiwangms in #7751
Update SECURITY.md by @andife in #7779
Fix formatting in RELEASE-MANAGEMENT.md by @andife in #7781
Rename docs to match PascalCase by @andife in #7778
Remove the autoupdate doc workflow by @cbourjau in #7785
Fix test_adam_multiple missing epsilon attribute in model.onnx by @Krishnachaitanyakc in #7763
Fix np.prod integer overflow on numpy < 2.0 by using dtype=np.int64 by @cyyever in #7783
Fix TOCTOU race in external data file open by @cyyever in #7790
Fix nanobind arg name by @cbourjau in #7823
Fix various linting issues and broken links by @cbourjau in #7826
Add Pixi task for building docs from locked environment by @cbourjau in #7824
Update Docker image version for x86_64 wheel build by @andife in #7804
Update CMakeLists.txt; update nanobind to 2.12.0 by @andife in #7851
Build docs on CI using Pixi by @cbourjau in #7845
Extend renovate config: track googletest releases with hash and auto-label PRs by @andife in #7853
improve codeql by @andife in #7863
Improve test matrix (e.g. fix unity build) by @cbourjau in #7860
Remove non-functional and insecure split-workflow CI pairs by @andife in #7876
Normalize legacy helper names to explicit opset ranges by @andife in #7873
fix: detect cycles in model-local functions to prevent stack overflow (GHSA-7w46-vvrh-m8q5) by @cyyever in #7815
Add pre-commit hooks by @cbourjau in #7857
Apply ruff formatting by @cbourjau in #7908
Remove deduplicated helpers by @cyyever in #7907
fix: add rank check in RNNShapeInference_opset1_to_6 to prevent OOB read by @andife in #7879
Drop redundant semicolons in macros by @cyyever in #7911
Fix wrong mantissa mask in to_float8e8m0 round-up mode by @cyyever in #7784
Fix null pointer dereferences in shape inference by @cyyever in #7916
Fix Resize shape inference precision for scaled output dimensions by @elwhyjay in #7874
Add clang-tidy CI job by @cbourjau in #7877
Fix protobuf field checks and add GRAPHS attribute handling by @cyyever in #7753
ci: add SLSA Build Level 2 provenance attestations for published artifacts by @andife in #7925
fix: improve diagnostic when Python interpreter is missing in manylinux entrypoint by @andife in #7926
fix: remove unnecessary git credentials in test job; guard proto size cast by @andife in #7931
Handle PathLike inputs consistently in infer_shapes by @Pratishtha5 in #7928
docs: add OpenVINO to RC partner validation checklist by @andife in #7927
Use scikit-build-core by @cbourjau in #7859
Fix duplicate tensor(float16) in Conv-11 type constraint by @cyyever in #7940
Speed up ReferenceEvaluator Resize via separable interpolation by @mrgyatso in #7920
Fix #7944: support NodeProto in printer.to_text by @mrgyatso in #7947
Add type_builders.h and migrate schema definitions to use it by @cyyever in #7945
Use commonpath for tar extraction validation by @NguyenCong2k in #7949
Validate tensor value count in make_tensor by @Pratishtha5 in #7954
Fix Resize reference op on 32-bit platforms by @cyyever in #7957
Use type DSL to improve operator schemas by @cyyever in #7956
Remove glob calls from ONNX CMake code by @Shadows-of-Fire in #7733
add overflow-safe integer multiplication by @cyyever in #7822
chore: correct Renovate docs link and manylinux example tag date by @Copilot in #7989
deduplicate duplicated kLargeDim constant in tensor_test.cc by @Copilot in #7975
Share generator for unary float math op schemas by @cyyever in #7969
ci: patch sbom.cdx.json with actual protobuf version and hash per build by @andife in #7987
Recommend onnx.parser for test cases in agent guidance files by @gramalingam in #7966
onnx: add LICENSE_NOTES.md by @threexc in #7864
Fix make_attribute_ref to set ref_attr_name by @devin-lai in #8009
fix: validate packed tensor dims against payload size in _unpack_4bit and _unpack_2bit by @andife in #8033
fix: validate packed sub-byte tensor payload size in checker by @andife in #8038

New Contributors

@tsubasakong made their first contribution in #7719
@Krishnachaitanyakc made their first contribution in #7763
@assafpr made their first contribution in #7803
@Chessing234 made their first contribution in #7809
@mshr-h made their first contribution in #7534
@zdryan made their first contribution in #7842
@WithEnoughCoffee made their first contribution in #7915
@OmarAzizi made their first contribution in #7760
@elwhyjay made their first contribution in #7874
@Pratishtha5 made their first contribution in #7928
@mrgyatso made their first contribution in #7920
@NguyenCong2k made their first contribution in #7949
@karimbaidar made their first contribution in #7868
@threexc made their first contribution in #7864
@tadani3 made their first contribution in #7964
@devin-lai made their first contribution in #8009

Full Changelog: v1.21.0...v1.22.0

onnx 1.22.0 v1.22.0 on Python PyPI