v2.0.0rc1 — MAJOR Version Change Release Candidate 1

Released: April 2026

Upgrading from v2.0.0rc0

No user-facing API changes. This release candidate fixes the PyPI publishing pipeline and CI infrastructure so that automated deployment is fully operational.

Bug Fixes

  • Bug Fix Resolved TypeError: function() argument 'code' must be code, not str during pytest collection on TensorFlow-only environments (backported from rc0 work; both test_cov_components_pure.py and test_cov_components_keras.py now use _KerasStub as the default fallback instead of a bare lambda).

Infrastructure / CI

  • Internal Fixed PyPI publishing workflow — pypa/gh-action-pypi-publish now uses API token authentication exclusively:

    • Removed id-token: write permission (was causing the action to attempt OIDC Trusted Publishing, which requires a publisher to be pre-registered on PyPI; the attempt failed with invalid-publisher and the step never fell back to the API token).

    • Added attestations: false to both publish-testpypi and publish-pypi steps, which tells the action to skip the OIDC code path entirely.

  • Internal Fixed CI hang on Linux and macOS runners:

    • Added CUDA_VISIBLE_DEVICES: '' — prevents TensorFlow from scanning for CUDA GPUs on CPU-only runners (was causing 20-40 min stalls on Linux).

    • Added TF_CPP_MIN_LOG_LEVEL: '3' — suppresses TF C++ logs that were flooding pytest log capture and causing apparent freezes.

    • Added TF_ENABLE_ONEDNN_OPTS: '0' — disables oneDNN JIT tuning latency.

    • Set log_cli = false and log_file_level = WARNING in pytest.ini to stop debug-level TF messages from being written to tests.log.

    • Added pytest-timeout>=2.3.0 and --timeout=120 (2 min per test).

    • Added timeout-minutes: 30 at the CI job level.

  • Internal Fixed tomllib import error in version-detection step of the publish workflow — tomllib is Python 3.11+ only; replaced with a re.search on the raw pyproject.toml text (compatible with Python 3.10).

  • Internal Fixed secret name mismatch: workflow was referencing TEST_PYPI_API_TOKEN (singular) but the repository secret is named TEST_PYPI_API_TOKENS (plural).

Documentation

  • Internal Split release_notes.rst into docs/release_notes/ directory; each version now has its own file for cleaner navigation and Git history.

  • Internal Added five new badges to docs/index.rst: PyPI version, Semantic Versioning, GitHub last commit, Open Issues, PRs Welcome.

  • Internal Improved platform badge contrast (lightgrey → #4a5568).

  • Internal README logo now uses the raw GitHub URL so it renders on PyPI.

  • Internal README Quick Start updated to v2 API (removed import tensorflow as tf, updated parameter names, numpy inputs).

  • Internal Citation updated: year 2025 → 2026, title updated to reflect multi-backend design.

Removed from Repository

  • Internal V2_BACKENDS_IMPLEMENTATION.md, V2_IMPLEMENTATION_PLAN.md, and .claude/ directory removed from the remote; patterns added to .gitignore.