Update dependency uv_build to >=0.12.6,<0.12.7

Sylva Renovate botrequested to merge
renovate/patch-python-build-system into main

This MR contains the following updates:

Package Change Age Confidence
uv_build (source, changelog) >=0.12.5,<0.12.6 -> >=0.12.6,<0.12.7 age confidence

Release Notes

astral-sh/uv (uv_build)

v0.12.6

Compare Source

Released on 2026-08-25.

Python
  • Update CPython to use OpenSSL 3.5.8 and libffi 3.4.8 #​21295)
Enhancements
  • Report cache-cleaning space savings from filesystem block allocation and avoid double-counting hard links (#​21261)
  • Limit warnings about unbounded uv_build requirements to source-distribution builds (#​21078)
  • Display byte counts below 1 KiB without a fractional part (#​21237)
Preview features
  • Add uv workspace metadata --sync --exact to remove packages outside the selected resolution (#​21117)
  • Add the artifact-hash-filtering preview feature to make uv pip compile --generate-hashes honor --only-binary and --no-binary (#​21235)
  • Respect package-specific exclude-newer cutoffs when uv check selects its ty executable (#​21227)
  • Preserve virtual-environment hints from tar-codec source-distribution errors when the base interpreter is outside a bin directory (#​21146)
Performance
  • Enable profile-guided optimization for Linux x86-64 release binaries (#​21001)
  • Enable profile-guided optimization for Windows x86-64 release binaries (#​21003)
  • Enable profile-guided optimization for macOS ARM64 release binaries (#​21002)
  • Enable profile-guided optimization for Linux ARM64 release binaries (#​21004)
  • Speed up syncing projects with many activated conflict items by reusing their encoded representation (#​21148)
Bug fixes
  • Allow explicit uv build and non-editable first-party workspace packages when no-build is enabled (#​21294)
  • Reuse configured index credentials during uv tool upgrade when the tool receipt references the same index (#​21275)
  • Ensure full 40-character Git commit pins resolve to the requested object instead of a SHA-named branch (#​21224)
  • Prevent TLS segfaults in riscv64 musl release binaries (#​21158)
  • Preserve dependencies selected by recursive extras when markers mix production and extra conditions (#​21181)
  • Preserve version constraints from transitively referenced recursive extras (#​21209)
  • Resolve repository-relative Git archive dependencies inside the checkout during the initial uv sync (#​21264)
  • Return an error instead of panicking when a bearer token cannot be encoded as an HTTP header (#​21282)
  • Do not misclassify package URLs ending in .py as local script paths (#​21144)
  • Use directory creation times consistently across libc implementations for directory cache-keys entries (#​21137)
  • Promote human-readable sizes to the next unit at rounding boundaries (#​21136)
Other changes
  • Add Python 3.15 release-candidate Docker images (#​21293)
  • Raise the minimum supported Rust version to 1.96 and update the repository toolchain to Rust 1.98 (#​21258)

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