This is the release note of v9.5.0. See here for the complete list of solved issues and merged PRs.

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Announcements

Removal of Alpha/Beta/RC Wheels from PyPI

• As per the discussion in #5671, we stopped uploading pre-release binary wheels to PyPI for the health of the ecosystem. Pre-release wheels can now be downloaded from the recently introduced custom index (e.g., pip install cupy-cudaXXX -f https://pip.cupy.dev/pre) . Note that the sdist package is available in PyPI for all versions.

• Outdated (v8.0.0rc1 or earlier) pre-release binaries have been removed from PyPI. See #5667 for details.

Changes

Enhancements

• Support cuDNN 8.2.4 (#5744)
• Support NCCL 2.11.4 (#5747)
• Fix cupyx.optimize to save file when no optimization ran (#5760)

Bug Fixes

• Fix spline filter with large array (#5686)
• Fix exception for indexing with multiple ellipses (#5739)
• Fix docstring for fallback modules (#5742)
• Include stdexcept in hip headers (#5777)
• Fixed typo in error message in sparse.csr_matrix (#5788)
• Fix MAX_NDIM and add guards/tests (#5798)
• Disable spmm on Windows CUDA 10.2 (#5805)

Documentation

• Fix random docstring (#5708)
• Remove --pre from ROCm source build instructions (#5782)
• Use custom index for pre-release wheels (#5793)

Installation

• Add maintainers in setup.py (#5758)
• Bump version to v9.5.0 (#5808)

Tests

• Update test_eigenvalue.py (#5643)
• Improve performance of TestSplineFilter1dLargeArray (#5694)
• Stop inheriting unittest.TestCase for performance (#5710)
• TestSplineFilter1dLargeArray marked slow and reduced memory usage (#5729)
• Make testing helpers support non-methods (#5731)
• Make test parameter names static (#5733)
• Update pip and setuptools in Windows CI (#5738)
• Improve FlexCI output (#5796)
• Fix error message comparison (#5806)

Others

• Add workflow to test/build/push docker images on pull-request/release (#5752)

Contributors

The CuPy Team would like to thank all those who contributed to this release!

@christinahedges @emcastillo @kmaehashi @leofang @takagi @toslunar