In one week, 2025-07-29, or slightly later, I plan to update the uv
package from 0.7.22 to 0.8.0 or a later 0.8.x release[1] in Fedora
Rawhide, 42, and 41. I also plan to ship the same update to the EPEL10
leading branch, currently EPEL 10.1.
In upstream’s words, “Since we released uv 0.7.0 in April, we've
accumulated various changes that improve correctness and user
experience, but could break some workflows. This release contains those
changes; many have been marked as breaking out of an abundance of
caution. We expect most users to be able to upgrade without making
changes.” The exact changes are documented in the release notes for
0.8.0[2].
For stable releases Fedora 42 and 41, this update is permitted under a
permanent exception to the Updates Policy[3]; for the EPEL10 leading
branch, it is permitted under a semi-permanent exception for versions up
to 1.0[4]. For EPEL “stable” branches (epel10.0), current policy does
not allow SemVer-breaking updates of uv or of the library-only Rust
packages upon which it depends, so uv 0.6.17 will continue to be the
final uv release in EPEL10.0 for the foreseeable future.
Four packages in Fedora now depend on uv: fawltydeps, hatch,
python-build, and python-tox-uv. A quick impact check using local mock
builds did not reveal any incompatibilities.
I will also update python-uv-build[5], the new uv-based build backend,
to the same version as uv. This package is still Rawhide-only for now.
As long as nothing yet depends on it, I prefer to allow a little time
for the ecosystem to work out any kinks before locking us into a
particular minor release in stable branches.
– Ben Beasley (FAS: music)
[1] https://src.fedoraproject.org/rpms/uv/pull-request/67
[2] https://github.com/astral-sh/uv/releases/tag/0.8.0
[3] https://pagure.io/fesco/issue/3262
[4] https://pagure.io/epel/issue/317#comment-958123
[5] https://src.fedoraproject.org/rpms/python-uv-build/pull-request/6
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