Release Notes

Enhancements

• Adduv sync --check flag (#12342)
• Add support for Python version requests inuv python list (#12375)
• Support.env files inuv tool run (#12386)
• Supportpython find --script (#11891)

Preview features

• Check all compatible torch indexes when--torch-backend is enabled (#12385)

Performance

• Use a boxed slice for extras and groups (#12391)
• Use small string for index name type (#12355)

Bug fixes

• Allow virtual packages with--no-build (#12314)
• Ignore--find-links entries for pinned indexes (#12396)
• Omit wheels from lockfile based on--exclude-newer (#12299)
• Retain end-of-line comment position when adding dependency (#12360)
• Omit fragment when querying for wheels in Simple HTML API (#12384)
• Error on missing argument inrequirements.txt (#12354)
• Support modules with different casing in build backend (#12240)
• Add authentication policy support forpip commands (#12470)

uv 0.6.10

Install uv 0.6.10

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.10/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.10/uv-installer.ps1 | iex"

Download uv 0.6.10

uv-build 0.6.10

Install uv-build 0.6.10

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.10/uv-build-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.10/uv-build-installer.ps1 | iex"

Download uv-build 0.6.10

Release Notes

Enhancements

• Usekeyring --mode creds whenauthenticate = "always" (#12316)
• Fail with specific error message when no password is present andauthenticate = "always" (#12313)

Bug fixes

• Add boolish value parser forUV_MANAGED_PYTHON flags (#12345)
• Make deserialization non-fatal when assessing source tree revisions (#12319)
• Use resolver-returned wheel over alternate cached wheel (#12301)

Documentation

• Add experimental--torch-backend to the PyTorch guide (#12317)
• Fix#keyring-provider references in alternative index docs (#12315)
• Fix--directory path in examples (#12165)

Preview changes

• Automatically infer the PyTorch index via--torch-backend=auto (#12070)

uv 0.6.9

Install uv 0.6.9

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.9/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.9/uv-installer.ps1 | iex"

Download uv 0.6.9

uv-build 0.6.9

Install uv-build 0.6.9

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.9/uv-build-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.9/uv-build-installer.ps1 | iex"

Download uv-build 0.6.9

Release Notes

Enhancements

• Add support for enabling all groups by default withdefault-groups = "all" (#12289)
• Add simpler--managed-python and--no-managed-python flags for toggling Python preferences (#12246)

Performance

• Avoid allocations for default cache keys (#12063)

Bug fixes

• Allow local version mismatches when validating lockfile (#12285)
• Allow owned string when deserializingrequires-python (#12278)
• Make cache errors non-fatal inPlanner::build (#12281)

uv 0.6.8

Install uv 0.6.8

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.8/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.8/uv-installer.ps1 | iex"

Download uv 0.6.8

uv-build 0.6.8

Install uv-build 0.6.8

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.8/uv-build-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.8/uv-build-installer.ps1 | iex"

Download uv-build 0.6.8

Release Notes

If encountering inconsistent wheel version errors, see#12254.

Python

• Add CPython 3.14.0a6
• Fix regression where extension modules would use wrongCXX compiler on Linux
• Enable FTS3 enhanced query syntax for SQLite

See thepython-build-standalone release notes for more details.

Enhancements

• Add support for-c constraints inuv add (#12209)
• Add support for--global default version inuv python pin (#12115)
• Always reinstall local source trees passed touv pip install (#12176)
• Render token claims on publish permission error (#12135)
• Add pip-compatible--group flag touv pip install anduv pip compile (#11686)

Preview features

• Avoid creating duplicate directory entries in built wheels (#12206)
• Allow overriding module names for editable builds (#12137)

Performance

• Avoid replicating core-metadata field onFile struct (#12159)

Bug fixes

• Addsrc to default cache keys (#12062)
• Discard insufficient fork markers (#10682)
• Ensurepython pin --global creates parent directories if missing (#12180)
• Fix GraalPy abi tag parsing and discovery (#12154)
• Remove extraneous script packages inuv sync --script (#12158)
• Remove redundantactivate.bat output (#12160)
• Avoid subsequent index hint when no versions are available on the first index (#9332)
• Error on lockfiles with incoherent wheel versions (#12235)

Rust API

• UpdateBaseClientBuild to accept custom proxies (#12232)

Documentation

• Make testpypi index explicit in example snippet (#12148)
• Reverse and format the archived changelogs (#12099)
• Use consistent commas around i.e. and e.g. (#12157)
• Fix typos in MRE docs (#12198)
• Fix double space typo (#12171)

uv 0.6.7

Install uv 0.6.7

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curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.7/uv-installer.sh| sh

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powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.7/uv-installer.ps1 | iex"

Download uv 0.6.7

uv-build 0.6.7

Install uv-build 0.6.7

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.7/uv-build-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.7/uv-build-installer.ps1 | iex"

Download uv-build 0.6.7

Release Notes

Python

• Add support for dynamic musl Python distributions on x86-64 Linux (#12121)
• Allow the experimental JIT to be enabled at runtime on Python 3.13 and 3.14 on Linux
• Upgrade the build toolchain to LLVM 20, improving performance

See thepython-build-standalone release notes for more details.

Enhancements

• Add--marker flag touv add (#12012)
• Allow overriding module name for uv build backend (#11884)
• Sync latest Python releases (#12120)
• Use 'Upload' instead of 'Download' in publish reporter (#12029)
• Add[index].authenticate allowing authentication to be required on an index (#11896)
• Add support for Windows legacy scripts inuv tool run (#12079)
• Propagate conflicting dependency groups when usinginclude-group (#12005)
• Show ambiguous requirements whenuv add failed (#12106)

Performance

• Cache workspace discovery (#12096)
• Insert dependencies into fork state prior to fetching metadata (#12057)
• Remove some allocations fromuv-auth (#12077)

Bug fixes

• Avoid consideringPATH updated when theexport is commented in the shellrc (#12043)
• Fixuv publish retry on network failures (#12041)
• Use a sized stream inuv publish to comply with WSGI PyPI server constraints (#12111)
• Fixuv python install --reinstall when the version was not previously installed (#12124)

Preview features

• Fixuv_build invocation (#12058)

Documentation

• Quote versions string inpython-versions.md (#12112)
• Fix tool concept page headings (#12053)
• Update the[index].authenticate docs (#12102)
• Update versioning policy (#11666)

uv 0.6.6

Install uv 0.6.6

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.6/uv-installer.sh| sh

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powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.6/uv-installer.ps1 | iex"

Download uv 0.6.6

uv-build 0.6.6

Install uv-build 0.6.6

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.6/uv-build-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.6/uv-build-installer.ps1 | iex"

Download uv-build 0.6.6

Release Notes

Some of the wheels for this build were initially not correctly published to PyPI. The release was temporarily yanked to avoid forcing users to build from source. The wheels were subsequently uploaded and the release was un-yanked.

Enhancements

• Allow--constraints and--overrides inuvx (#10207)
• Allow overrides insatisfies check foruv tool run (#11994)
• Allow users to setpackage = true ontool.uv.sources (#12014)
• Add support for Windows legacy scripts viauv run (#11888)
• Return error when running uvx with a.py script (#11623)
• Warn user on use ofuvx run (#11992)

Configuration

• AddNO_BUILD andNO_BUILD_PACKAGE environment variables (#11968)

Performance

• Allow overrides in all satisfies checks (#11995)
• Respect markers on constraints when validating current environment (#11976)

Bug fixes

• Compare major-minor specifiers when filtering interpreters (#11952)
• Fix system site packages detection default (#11956)
• Invalidate lockfile when empty dependency groups are added or removed (#12010)
• Remove prepended sys.path (#11954)
• Fix PyPy Python version label (#11965)
• Fix error message suggesting--user instead of--username (#11947)

Preview

• Move the uv build backend into a separate, minimaluv_build package (#11446)

Install uv 0.6.5

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.5/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.5/uv-installer.ps1 | iex"

Download uv 0.6.5

Release Notes

Enhancements

• Upgrade pypy3.10 to v7.3.19 (#11814)
• Allow configuring log verbosity from the CLI (i.e.,-vvv) (#11758)
• Warn when duplicate index names found in single file (#11824)

Bug fixes

• Always store registry index on resolution packages (#11815)
• Avoid error on relative paths inuv tool uninstall (#11889)
• Avoid silently dropping errors in directory enumeration (#11890)
• Disable interactive git terminal prompts during fetches (#11744)
• Discover Windows registry (PEP 514) Python versions across 32/64-bit (#11801)
• Don't panic on Ctrl-C in confirm prompt (#11706)
• Fix non-directory in workspace on Windows (#11833)
• Make interpreter caching robust to OS upgrades (#11875)
• Respectinclude-system-site-packages in layered environments (#11873)
• Suggestuv tool update-shell in PowerShell (#11846)
• Update code page to65001 before setting environment variables in virtual environments (#11831)
• Use hash instead of full wheel name in wheels bucket (#11738)
• Fix version string truncation while generating cache_key (#11830)
• Explicitly handle ctrl-c in confirmation prompt instead of using a signal handler (#11897)

Performance

• Avoid cloning to string when creating cache path (#11772)
• Avoid redundant clones in version containment check (#11767)
• Avoid string allocation when enumerating tool names (#11910)
• Avoid using ownedString for package name constructors (#11768)
• Avoid using ownedString in deserializers (#11764)
• Migrate tozlib-rs (again) (#11894)
• Remove unnecessary clones when adding package names (#11771)
• Skip unquote allocation for non-quoted strings (#11813)
• UseSmallString for filenames and URLs (#11765)
• Use a Boxed slice for version specifiers (#11766)
• Use matches over contains for extra value parsing (#11770)

Documentation

• Avoid fallback to PyPI in mixed CPU/CUDA example (#11115)
• Docs: Clarify that setting cache-keys overrides defaults (#11895)
• Document our MSRV policy (#11898)
• Fix reference to macOS cache path (#11845)
• Fix typo inno_default_groups documentation and changelog (#11928)
• Update the "Locking and syncing" page (#11647)
• Update alternative indexes documentation to use new interface (#10826)

Install uv 0.6.4

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.4/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.4/uv-installer.ps1 | iex"

Download uv 0.6.4

Release Notes

Enhancements

• Allow quotes around command-line options inrequirement.txt files (#11644)
• Initialize PEP 723 script inuv lock --script (#11717)

Configuration

• Accept multiple.env files inUV_ENV_FILE (#11665)

Performance

• Reduce overhead in converting resolutions (#11660)
• UseSmallString onHashes (#11756)
• Use aBox forYanked onFile (#11755)
• Use aSmallString for theYanked enum (#11715)
• Use boxed slices for hash vector (#11714)
• Use install concurrency for bytecode compilation too (#11615)

Bug fixes

• Avoid installing duplicate dependencies across conflicting groups (#11653)
• Check subdirectory existence after cache heal (#11719)
• Include uppercase platforms for Windows wheels (#11681)
• Respect existing PEP 723 script settings inuv add (#11716)
• Reuse refined interpreter to create tool environment (#11680)
• Skip removed directories during bytecode compilation (#11633)
• Support conflict markers inuv export (#11643)
• Treat lockfile as outdated if (empty) extras are added (#11702)
• Display path separators as backslashes on Windows (#11667)
• Display the built file name instead of the canonicalized name inuv build (#11593)
• Fix message when there are no buildable packages (#11722)
• Re-allow HTTP schemes for Git dependencies (#11687)

Documentation

• Add anchor links to arguments and options in the CLI reference (#11754)
• Add link to environment marker specification (#11748)
• Fix missing a closing bracket in thecache-keys setting (#11669)
• Remove the last edited date from documentation pages (#11753)
• Fix readme typo (#11742)

Install uv 0.6.3

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.3/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.3/uv-installer.ps1 | iex"

Download uv 0.6.3

Release Notes

Enhancements

• Add support for constraining build dependencies withtool.uv.build-constraint-dependencies (#11585)
• Sort dependency group keys when adding new group (#11591)

Performance

• Use anArc for index URLs (#11586)

Bug fixes

• Allow use of x86-64 Python on ARM Windows (#11625)
• Fix an issue where conflict markers could instigate a very large lock file (#11293)
• Fix duplicate packages with multiple conflicting extras declared (#11513)
• Respect color settings for log messages (#11604)
• Eagerly reject unsupported Git schemes (#11514)

Documentation

• Add documentation for specifying Python versions in tool commands (#11598)

Install uv 0.6.2

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.2/uv-installer.sh| sh

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powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.2/uv-installer.ps1 | iex"

Download uv 0.6.2

Release Notes

Enhancements

• Allow users to mark platforms as "required" for wheel coverage (#10067)
• Warn for builds in non-build and workspace root pyproject.toml (#11394)

Bug fixes

• Add--all touvx --reinstall message (#11535)
• Fallback toGET on HTTP 400 when attempting to use range requests for wheel download (#11539)
• Prefer local variants in preference selection (#11546)
• Respect verbatim executable name inuvx (#11524)

Documentation

• Add documentation for required environments (#11542)
• Note thatmain.py used to behello.py (#11519)

Install uv 0.6.1

Install prebuilt binaries via shell script

curl --proto'=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.6.1/uv-installer.sh| sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c"irm https://github.com/astral-sh/uv/releases/download/0.6.1/uv-installer.ps1 | iex"

Download uv 0.6.1