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uv 0.13.5

Update2 days agoUnverifiedAdded Oct 22, 2026

Release Notes Released on 2026-10-21. Following uv 0.13.4, which removed the affected eMudhra/emSign root from uv's own certificate store, this release updates the latest managed CPython builds for 3.11 and newer to python-build-standalone 20261021, including the CPython 3.15.1, 3.14.9, and 3.13.17 security patch releases.

Topics: Streaming, Security, Performance

Astral's release notes

More uv releases

Every uv release
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uv 0.13.3

Release Notes Released on 2026-10-20. Performance Avoid severe uv export slowdowns in dependency graphs with extras Install uv 0.13.3 Install prebuilt binaries via shell script sh curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/uv/releases/download/0.13.3/uv-installer.sh | sh Install prebuilt binaries via powershell script sh...

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uv 0.13.4

Release Notes Released on 2026-10-20. This release addresses GHSA-hq85-5cpj-mr62, which involves a root CA whose intermediate on the Web PKI have been compromised. Users are encouraged to upgrade immediately, as well as confirm that all other software that uses bundled CAs is also properly updated.

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uv 0.13.2

Release Notes Released on 2026-10-19. Enhancements Report all installed packages in uv workspace metadata, including packages outside the selected resolution Include supported environment restrictions when exporting pylock.toml Retry dropped GET and HEAD requests when fetching package and index data Preserve encoding declarations in wheel data scripts that...

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Updateunverified

uv 0.13.1

Release Notes Released on 2026-10-14. Enhancements Ignore Requires-Python upper bounds in uv pip check and uv pip install --strict, consistent with resolution Support Linux SPARC by falling back when filesystem cloning and detailed cache accounting are unavailable Report missing trusted hashes in resolution errors Python Add CPython 3.16.0a1 Preview...

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Updateunverified

uv 0.13.0

Release Notes Released on 2026-10-09. uv 0.13.0 makes Python 3.15 the default stable Python version. We've also included several breaking changes to improve correctness, performance, and compatibility, described below. We expect most users to be able to upgrade without making changes.

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Updateunverified

uv 0.12.24

Release Notes Released on 2026-10-08. Enhancements Remove orphaned temporary build environments with uv cache prune Accept PEP 508 marker operators directly before grouped expressions Reject malformed requirements-file options instead of partially parsing or ignoring them Show underlying filesystem and registry errors when managed Python uninstallation...

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Updateunverified

uv 0.12.23

Release Notes Released on 2026-10-03. Python Add CPython 3.15.0rc3 Preview features Sync from uv.lock without a workspace manifest using uv sync --frozen with frozen-lockfile Export from uv.lock without a workspace manifest using uv export --frozen with frozen-lockfile Inspect dependency trees from uv.lock without a workspace manifest using uv tree --frozen...

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Updateunverified

uv 0.12.22

Release Notes Released on 2026-10-01. Python Add CPython 3.10.22, 3.11.17, 3.12.15, 3.13.16, and 3.14.8 Enhancements Accept uppercase release suffixes in wheel platform tags Record workspace-member default groups in lockfiles (#22010, #22103) Record workspace-member dependency-group Python requirements in lockfiles (#22044, #22103) Record default groups for...

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Also shipped on Oct 22, 2026

Astral in October 2026