This is the release note of v12.0.0a1. See here for the complete list of solved issues and merged PRs.

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Highlights

Increased cupyx.scipy APIs (#6823, #6849, #6855, #6890, #6958, #6971)

The coverage of SciPy interpolate, stats & special APIs has increased. (Thanks @khushi-411 & @andoorve!)

Jetson AGX Orin Support (#6876)

Arm (aarch64) wheels are now compiled with support for compute capability 8.7.
These wheels are available through our Pip index: pip install --pre cupy-cuda11x -f https://pip.cupy.dev/aarch64

Changes

New Features

• Add cupy.heaviside api. (#6798)
• Add cupyx.scipy.special.log_softmax (#6823)
• Add cupyx.scipy.stats.boxcox_llf (#6849)
• Add cupyx.scipy.stats.{zmap, zscore} (#6855)
• Add cupyx.scipy.special.softmax (#6890)
• Add dtype, fweights, aweights to cupy.cov (#6892)
• Add cupyx.scipy.interpolate.BarycentricInterpolator (#6958)
• Add scipy.special.cosm1 to cupyx (#6971)

Enhancements

• Enhance JIT error message when __device__ option is missing (#6837)
• Fix augassign target is evaluated twice in JIT (#6844)
• JIT: Add type annotation in _compile.py (#6859)
• Add complex support for nanvar and nanstd (#6869)
• Update cupy.array_api (#6871)
• Accept kind in sort/argsort and fix cupy.array_api.{sort,argsort} accordingly (#6872)
• Add CC 8.7 for Jetson Orin (#6876)
• Update cupy-wheel for v11 (#6903)
• Support deg in cupy.angle (#6905)
• Make sure that uniform sampling respects broadcasting (#6928)
• Update cupy.array_api (cont'd) (#6932)
• Support SciPy 1.9 (#6962)
• Make testing decorators able to use with @pytest.mark.parametrize in some cases (#6984)
• Relaxed C-contiguous requirement for changing dtype of different size (#6848)
• Support keepdims parameter for average (#6852)
• Support equal_nan parameter for unique (#6853)

Performance Improvements

• Efficiency improvements in cupyx.scipy.ndimage utilities (#6953)

Bug Fixes

• Generate CUBIN for all supported GPUs at build time (#6875)
• Fix boxcox_llf (#6884)
• Fix real and imag in subclass (#6896)
• Fix cupy.clip to match numpy (#6920)
• Let argpartition use the kth argument properly (#6921)
• Fix cuTensorNet shim layer (#6934)
• Fix occasional hang in sparse distributed (#6942)
• Fix SciPy dependency leak (#6947)
• Fix CUB reduction with zero-size arrays (#6960)

Code Fixes

• Fix function names (#6877)
• Remove proxy functions for softlink (#6879)
• Suppress nvcc warning (#6954)

Documentation

• Bump documentation build requirements (#6825)
• Reverting to v10 installation instruction until v11 stable release (#6836)
• Fix ROCm supported versions in compat matrix (#6846)
• Generate docs for private classes in one location (#6857)
• Expand breaking change & best practice on device management (#6883)
• Update installation guide for v11 (aarch64) (#6888)
• Update install instructions on README (#6889)
• Document matmul supports out (#6898)
• Fix docs build failure (#6955)

Installation

• Reorganize build scripts: define compile options declaratively (#6911)
• Parallelize Cythonize (#6975)
• Remove use of distutils.utils (#7006)

Examples

• Make matrix in CG example positive definite (#6939)

Tests

• Update tags for FlexCI projects (#6814)
• Add config for cupy.win.cuda117 (#6880)
• Fix XFAIL for tests/cupyx_tests/scipy_tests/sparse_tests/test_coo.py when scipy>=1.9.0rc2 (#6894)
• Use ubuntu-22.04 as GitHub Actions runner image (#6988)
• Revert comment fix (#6995)
• Filter warnings from setuptools 65 (#7000)
• CI: bump CUDA version used in cuda-python test (#7022)
• CI: Add ROCm 5.1 and 5.2 (#6828)
• CI: Show all errors when doc build fail (#6910)

Others

• Bump version to v12.0.0a1 (#7027)

Contributors

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

@andfoy @andoorve @asi1024 @BasLaa @emcastillo @grlee77 @khushi-411 @kmaehashi @leofang @pri1311 @takagi @tom24d @toslunar @tpkessler