v0.9.28

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Released on 2026-01-29.

Python

• Update CPython to use OpenSSL 3.5.5 which includes fixes for high severity CVEs (python-build-standalone#960)

Enhancements

• Add support for Pyodide interpreter on Windows (#​17658)
• Warn if multiple indexes include default = true (#​17713)
• Skip uploads when validation reports 'Already uploaded' (#​17412)

Configuration

• Add a reflink alias for the "clone" link mode (#​17724)

Bug fixes

• Ensure uv.exe exits when uvw.exe or uvx.exe is killed (#​17500)

v0.9.27

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Released on 2026-01-26.

Python

• Upgrade Pyodide to 0.29.2 (#​17652)
• Upgrade to GraalPy 25.0.2 (#​17634)

Enhancements

• Add -t shortform for --target to uv pip subcommands (#​17501)
• Add support for ROCm 7.0 and 7.1 accelerator backends (#​17681)
• Further improve free-threading ABI incompatibility errors (#​17491)
• Implement uv pip freeze --exclude flag (#​17045)
• Improve warnings for --system and --no-system in uv venv (#​17647)
• Make uv pip compile attempt to download a specified --python-version if it can. (#​17249)
• Support Trusted Publishing with pyx (#​17438)
• Fix JSON schema for exclude-newer-package (#​17665)

Preview features

• Better detection for conflicting packages (#​17623)
• Upgrade based on outdated build versions in uv python upgrade (#​17653)

Bug fixes

• Change chocolatey system test to ensure uv uses the right python (#​17533)
• Fix infinite loop when SSL_CERT_FILE is a directory (#​17503)

Documentation

• Add cargo-xwin to the CONTRIBUTING guide (#​17507)
• Fix typo in the documentation of UV_PUBLISH_INDEX (#​17672)
• Move MSRV to platform support section (#​17534)
• Update the testing instructions in the CONTRIBUTING guide (#​17528)
• Use --locked to install cargo-xwin in guide (#​17530)
• Warn about PyPy being unmaintained (#​17643)
• docs: Correct gitlab-ci.yml to .gitlab-ci.yml (#​17682)

Other changes

• Update MSRV to 1.91 (#​17677)

v0.9.26

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Released on 2026-01-15.

Python

• Add CPython 3.15.0a5

Enhancements

• Add a hint to update uv when a managed Python download is not found (#​17461)
• Improve cache initialization failure error message (#​17469)
• Improve error message for abi3 wheels on free-threaded Python (#​17442)
• Add support for --no-sources-package (#​14910)

Preview features

• Add METADATA.json and WHEEL.json in uv build backend (#​15510)
• Add support for GCS request signing (#​17474)
• Adjust the process ulimit to the maximum allowed on startup (#​17464)

Bug fixes

• Lock to avoid concurrent refresh of pyx tokens (#​17479)

Documentation

• Add linting and formatting instructions to the CONTRIBUTING guide (#​17470)
• Avoid rendering pyproject.toml examples for more system-level settings (#​17462)

v0.9.25

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Released on 2026-01-13.

Python

• Add CPython 3.15.0a4
• Upgrade Tcl/Tk used by CPython to 9.0

Enhancements

• Add --compile-bytecode to uv python install and uv python upgrade to compile the standard library (#​17088)
• Allow disabling exclude-newer per package (#​16854)
• Broadcast WM_SETTINGCHANGE on uv tool update-shell (#​17404)

Preview features

• Detect workspace from uv run target (#​17423)

Bug fixes

• Avoid unwrapping size for file responses (#​17434)
• Use keyring authentication when retrieving tool@latest version (#​17448)
• Use latest Pyodide version for each python version (#​17372)
• Improve trampoline file handle closing (#​17374)
• Fix error message when installing musl python on armv7 (#​17213)

v0.9.24

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Released on 2026-01-09.

Bug fixes

• Fix handling of UV_NO_SYNC=1 uv run ... (#​17391)
• Rebuild dynamic distribution when version changes with --no-cache (#​17387)

Documentation

• Add Rust language classifier (#​17389)

v0.9.23

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Released on 2026-01-09.

Enhancements

• Only write portable paths in RECORD files (#​17339)
• Support relative paths in UV_PYTHON_BIN_DIR and UV_TOOL_BIN_DIR (#​17367)

Preview features

• Enable uploads to S3 via pre-signed URLs (#​17349)

Configuration

• Allow setting proxy variables via global / user configuration (#​16918)
• Manually parse and reconcile Boolean environment variables (#​17321)

Bug fixes

• Avoid broken build artifacts on build failure (#​17276)
• Fix missing dependencies on synthetic root in SBOM export (#​17363)
• Recognize armv8l as an alias for armv7l in platform tag parsing (#​17384)
• Fix redaction of a URL in a middleware trace log (#​17346)

Documentation

• Add index.md suggestion to llms.txt (#​17362)
• Clarify that uv run uses inexact syncing by default (#​17366)

v0.9.22

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Released on 2026-01-06.

Enhancements

• Use a dedicated error message when lockfile can't be found (#​17318)

Bug fixes

• Filter unusable wheels from the lockfile for more architectures (#​17317)
• Correctly count retries originating from early middleware errors (#​17274)

Documentation

• Clarify requirements file format in docs (#​17284)

v0.9.21

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Released on 2025-12-30.

Bug fixes

• Fix regression where zstd distribution hashes were not considered valid (#​17265)

Documentation

• Fix a typo in the resolution documentation (#​17258)
• Fix a typo in python install --default documentation (#​9826)

v0.9.20

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Released on 2025-12-29.

This is a re-release of 0.9.20, with internal crate versions incremented to enable publishing to crates.io.

v0.9.18

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Released on 2025-12-16.

Enhancements

• Add value hints to command line arguments to improve shell completion accuracy (#​17080)
• Improve error handling in uv publish (#​17096)
• Improve rendering of multiline error messages (#​17132)
• Support redirects in uv publish (#​17130)
• Include Docker images with the alpine version, e.g., python3.x-alpine3.23 (#​17100)

Configuration

• Accept --torch-backend in [tool.uv] (#​17116)

Performance

• Speed up uv cache size (#​17015)
• Initialize S3 signer once (#​17092)

Bug fixes

• Avoid panics due to reads on failed requests (#​17098)
• Enforce latest-version in @latest requests (#​17114)
• Explicitly set EntryType for file entries in tar (#​17043)
• Ignore pyproject.toml index username in lockfile comparison (#​16995)
• Relax error when using uv add with UV_GIT_LFS set (#​17127)
• Support file locks on ExFAT on macOS (#​17115)
• Change schema for exclude-newer into optional string (#​17121)

Documentation

• Drop arm musl caveat from Docker documentation (#​17111)
• Fix version reference in resolver example (#​17085)
• Better documentation for exclude-newer* (#​17079)

v0.9.17

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Released on 2025-12-09.

Enhancements

• Add torch-tensorrt and torchao to the PyTorch list (#​17053)
• Add hint for misplaced --verbose in uv tool run (#​17020)
• Add support for relative durations in exclude-newer (a.k.a., dependency cooldowns) (#​16814)
• Add support for relocatable nushell activation script (#​17036)

Bug fixes

• Respect dropped (but explicit) indexes in dependency groups (#​17012)

Documentation

• Improve source-exclude reference docs (#​16832)
• Recommend UV_NO_DEV in Docker installs (#​17030)
• Update UV_VERSION in docs for GitLab CI/CD (#​17040)

v0.9.16

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Released on 2025-12-06.

Python

• Add CPython 3.14.2
• Add CPython 3.13.11

Enhancements

• Add a 5m default timeout to acquiring file locks to fail faster on deadlock (#​16342)
• Add a stub debug subcommand to uv pip announcing its intentional absence (#​16966)
• Add bounds in uv add --script (#​16954)
• Add brew specific message for uv self update (#​16838)
• Error when built wheel is for the wrong platform (#​16074)
• Filter wheels from PEP 751 files based on --no-binary et al in uv pip compile (#​16956)
• Support --target and --prefix in uv pip list, uv pip freeze, and uv pip show (#​16955)
• Tweak language for build backend validation errors (#​16720)
• Use explicit credentials cache instead of global static (#​16768)
• Enable SIMD in HTML parsing (#​17010)

Preview features

• Fix missing preview warning in uv workspace metadata (#​16988)
• Add a uv auth helper --protocol bazel command (#​16886)

Bug fixes

• Fix Pyston wheel compatibility tags (#​16972)
• Allow redundant entries in tool.uv.build-backend.module-name but emit warnings (#​16928)
• Fix infinite loop in non-attribute re-treats during HTML parsing (#​17010)

Documentation

• Clarify --project flag help text to indicate project discovery (#​16965)
• Regenerate the crates.io READMEs on release (#​16992)
• Update Docker integration guide to prefer COPY over ADD for simple cases (#​16883)
• Update PyTorch documentation to include information about supporting CUDA 13.0.x (#​16957)
• Update the versioning policy (#​16710)
• Upgrade PyTorch documentation to latest versions (#​16970)

v0.9.15

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Released on 2025-12-02.

Python

• Add CPython 3.14.1
• Add CPython 3.13.10

Enhancements

• Add ROCm 6.4 to --torch-backend=auto (#​16919)
• Add a Windows manifest to uv binaries (#​16894)
• Add LFS toggle to Git sources (#​16143)
• Cache source reads during resolution (#​16888)
• Allow reading requirements from scripts without an extension (#​16923)
• Allow reading requirements from scripts with HTTP(S) paths (#​16891)

Configuration

• Add UV_HIDE_BUILD_OUTPUT to omit build logs (#​16885)

Bug fixes

• Fix uv-trampoline-builder builds from crates.io by moving bundled executables (#​16922)
• Respect NO_COLOR and always show the command as a header when paging uv help output (#​16908)
• Use 0o666 permissions for flock files instead of 0o777 (#​16845)
• Revert "Bump astral-tl to v0.7.10 (#​16887)" to narrow down a regression causing hangs in metadata retrieval (#​16938)

Documentation

• Link to the uv version in crates.io member READMEs (#​16939)

v0.9.14

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Released on 2025-12-01.

Performance

• Bump astral-tl to v0.7.10 to enable SIMD for HTML parsing (#​16887)

Bug fixes

• Allow earlier post releases with exclusive ordering (#​16881)
• Prefer updating existing .zshenv over creating a new one in tool update-shell (#​16866)
• Respect -e flags in uv add (#​16882)

Enhancements

• Attach subcommand to User-Agent string (#​16837)
• Prefer UV_WORKING_DIR over UV_WORKING_DIRECTORY for consistency (#​16884)