NVIDIA/cccl python-0.4.3

CCCL Python Libraries (v0.4.3)

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These are the release notes for the cuda-cccl Python package version 0.4.3, dated December 18th, 2025. The previous release was v0.4.2.

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

Improvements and bug fixes

• Add missing OpKind docs entries (#6910)
• Unify operator handling in cuda.compute (#6938)
• [cuda.compute] Refactor code for creating void* wrappers (#6941)
• Remove need for hardcoded LevelT for histogram in c.parallel and cuda.compute (#6915)
• c.parallel: reuse CUB agent policies for histogram (#6974)
• [cuda.compute]: fix alignment not being set properly for gpu_struct types (#6995)