0.12.20 0.12.19

astral-sh/uvSep 28, 2026 → Sep 25, 20260 days between releases

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Analyzing what changed between 0.12.20 and 0.12.19. This page updates automatically — usually within a minute.

The Two Releases

0.12.20

0.12.20

Sep 28, 2026· 23 days ago

This release focuses on lockfile optimization, encoding fixes for wheel scripts, and stability improvements including performance restoration for HTTP caching and bug fixes for hash constraints and panics.

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0.12.19

0.12.19

Sep 25, 2026· 27 days ago

This release adds support for newer Python versions including PyPy 3.11.16 and 3.12.14, and GraalPy 3.13.0. It introduces preview features for lazy imports in build backends and resolution input handling. Additionally, it fixes issues with package reinstalling due to signed query parameters and marker parsing.

Full release notes