github NVIDIA/cccl python-0.4.5
CCCL Python Libraries (v0.4.5)

22 hours ago

These are the release notes for the cuda-cccl Python package version 0.4.5, dated January 23rd, 2026. The previous release was v0.4.4.

cuda-cccl is in "experimental" status, meaning that its API and feature set can change quite rapidly.

Installation

Please refer to the install instructions here

Features

  • Add cuda.compute APIs for upper_bound and lower_bound (#7250)
  • Support lambdas as operators in cuda.compute (#7058)

Improvements

  • Consolidate caching logic across cuda.compute algorithms (#7281)
  • Allow multiple uses of the same function in one compilation (#7072)
  • Make cuda.compute importable in CPU-only environments (#7171)
  • Improve cuda.compute documentation (#7061)
  • Update Python package versioning flow (96f98db)

Bug Fixes

  • Fix deferred annotations handling (#7321, #7121)
  • Disable LDL/STL checks to avoid NVRTC 13.1 failures (#7054)
  • Fix documentation build issues (#7122)
  • Fix Python-related docs (#7052)

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