Update dependency uv to v0.12.15

[timmo001]

This PR contains the following updates:

Package	Type	Update	Change	Pending
uv	tools	patch	0.12.11 → 0.12.15	0.12.16

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Release Notes

astral-sh/uv (uv)

v0.12.15

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Released on 2026-09-15.

Performance

• Speed up cold-cache resolution and HTTP cache revalidation by batching cache writes (#​21675)

Bug fixes

• Fix regressions in 0.12.14 when installing to symlinked destinations or using uv pip install --target . (#​21699)

v0.12.14

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Released on 2026-09-15.

Enhancements

• Resume interrupted downloads with HTTP Range requests when supported (#​21570)
• Use a consistent format for error rendering (#​17110)
• Render error and warning causes with compact cause: labels (#​21599, #​21603)
• Show underlying causes and hints in user warnings (#​21565)
• Show resolver hints for failed uv tool upgrade operations (#​21566)

Preview features

• Export multiple dependency selections from a shared lockfile in one uv export --batch invocation with the batch-export preview feature (#​21618)

Performance

• Speed up dependency resolution from local wheelhouses by reading wheel metadata in a single blocking task (#​21619)
• Speed up cold resolution against large package indexes by parsing Simple API responses in bounded background workers (#​21593)
• Speed up warm-cache resolution by decoding fresh HTTP cache entries in the cache-read task (#​21621)

Bug fixes

• Select releases that satisfy required-environments within each resolver fork instead of combining incompatible wheel coverage across forks (#​21672)
• Install packages with paths longer than MAX_PATH on Windows systems without long-path support enabled (#​21625)
• Prevent uv python install from overwriting valid unmanaged Python symlinks with relative targets on Unix (#​21639)
• Redact credentials and signatures from missing-path-segment URL errors (#​21616)
• Avoid exceeding the configured retry budget when cached HTTP responses fail revalidation (#​21640)
• Prefer bin/python over bin/python3 when discovering interpreters in Unix environments (#​21559)
• Classify package-operation exit codes by their underlying cause: return 1 for expected failures and 2 for recognized operational and internal failures (#​17110)
• Suppress managed-Python fallback warnings under --quiet (#​21565)
• Keep failed uv tool upgrade errors visible with -q while suppressing them with -qq (#​21566)

v0.12.13

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Released on 2026-09-10.

Python

• Add GraalPy 3.13.0 (#​21431)

Enhancements

• Verify hashes when downloading PEP 658 metadata sidecars (#​21563)

Preview features

• Respect ty exclusions when uv check automatically selects members of a virtual workspace (#​21555)

Performance

• Avoid full wheel downloads during resolution by reusing supported hashes from direct URL fragments when metadata is available separately (#​21279)

Bug fixes

• Edit Windows entry-point launcher resources in memory to support Nano Server and reduce antivirus contention (#​18713)
• Prefer core-metadata over legacy aliases in JSON index responses (#​21563)

v0.12.12

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Released on 2026-09-09.

The executables in our macOS and Windows release archives and uv and uv_build wheels are now code-signed. macOS executables are signed with an Apple Developer ID certificate and notarized by Apple. Windows executables have timestamped Authenticode signatures from Azure Artifact Signing. This enables verification of the release publisher and binary integrity, supports publisher-based allowlisting, and should reduce security warnings and antivirus false positives.

Bug fixes

• Exclude distributions uploaded after the exclude-newer cutoff from lockfiles and generated requirement hashes (#​21539)

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