0.12.21 0.12.20

Name: uv
Author: astral-sh

astral-sh/uvSep 29, 2026 → Sep 28, 20260 days between releases

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Analyzing what changed between 0.12.21 and 0.12.20. This page updates automatically — usually within a minute.

The Two Releases

0.12.21

Sep 29, 2026· 22 days ago

Updates CPython to use OpenSSL 3.5.9 and improves lockfile cleanliness by omitting empty sections and redundant constraints.

Full release notes

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.

Full release notes