0.11.21

## Release Notes

Released on 2026-06-11.

### Python

- Add CPython 3.13.14 and 3.14.6 ([#19787](https://github.com/astral-sh/uv/pull/19787))

### Preview features

- Add `environment.root` to `uv workspace metadata --sync` ([#19760](https://github.com/astral-sh/uv/pull/19760))
- Allow `uv upgrade` to update a single dependency constraint ([#19738](https://github.com/astral-sh/uv/pull/19738))
- Compute and pass `uv workspace metadata` payload in `ty check` ([#19763](https://github.com/astral-sh/uv/pull/19763))
- Make packaged applications the default for `uv init` ([#17841](https://github.com/astral-sh/uv/pull/17841))

### Performance

- Add parallel discovery of Python versions for `uv python list` ([#18684](https://github.com/astral-sh/uv/pull/18684))
- Avoid normalizing source distribution names twice ([#19784](https://github.com/astral-sh/uv/pull/19784))

### Bug fixes

- Improve cache robustness and pruning behavior
  - Allow CI cache pruning without an sdist bucket ([#19802](https://github.com/astral-sh/uv/pull/19802))
  - Avoid overflow when reading malformed cache entries ([#19799](https://github.com/astral-sh/uv/pull/19799))
  - Preserve cached Python downloads during cache pruning ([#19795](https://github.com/astral-sh/uv/pull/19795))
  - Reject running inside the cache ([#19659](https://github.com/astral-sh/uv/pull/19659))
- Fix Python discovery and version request edge cases
  - Avoid panics for Unicode Python version requests ([#19797](https://github.com/astral-sh/uv/pull/19797))
  - Fix handling of non-critical errors in `uv python list` with path requests ([#19774](https://github.com/astral-sh/uv/pull/19774))
  - Fix stop-discovery-at regression ([#19769](https://github.com/astral-sh/uv/pull/19769))
- Harden parsing and validation for package metadata, requirements, markers, URLs, and conflict sets
  - Allow trailing commas in version specifiers ([#19806](https://github.com/astral-sh/uv/pull/19806))
  - Avoid panics for invalid UTF-8 URL credentials ([#19800](https://github.com/astral-sh/uv/pull/19800))
  - Avoid panics for malformed source distribution filenames ([#19776](https://github.com/astral-sh/uv/pull/19776))
  - Avoid panics for trailing extra separators ([#19779](https://github.com/astral-sh/uv/pull/19779))
  - Avoid stack overflow for recursive requirements path aliases ([#19777](https://github.com/astral-sh/uv/pull/19777))
  - Ignore reversed string compatible-release markers ([#19782](https://github.com/astral-sh/uv/pull/19782))
  - Reject duplicate entries in conflict sets ([#19801](https://github.com/astral-sh/uv/pull/19801))
  - Reject malformed hash options in requirements files ([#19783](https://github.com/astral-sh/uv/pull/19783))
  - Reject source distribution filenames without a separator ([#19803](https://github.com/astral-sh/uv/pull/19803))
  - Use UTF-8 lengths for requirement errors ([#19781](https://github.com/astral-sh/uv/pull/19781))
  - Use UTF-8 lengths for trailing marker errors ([#19796](https://github.com/astral-sh/uv/pull/19796))
  - Use byte offsets when peeking over requirements ([#19780](https://github.com/astral-sh/uv/pull/19780))
  - Validate GraalPy ABI suffixes ([#19805](https://github.com/astral-sh/uv/pull/19805))
- Improve wheel entry-point error handling and virtual environment activation quoting
  - Propagate errors when reading wheel entry points ([#19794](https://github.com/astral-sh/uv/pull/19794))
  - Quote virtual environment activation paths with shell metacharacters ([#19798](https://github.com/astral-sh/uv/pull/19798))

## Install uv 0.11.21

### Install prebuilt binaries via shell script

```sh
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-installer.sh | sh
```

### Install prebuilt binaries via powershell script

```sh
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-installer.ps1 | iex"
```

## Download uv 0.11.21

|  File  | Platform | Checksum |
|--------|----------|----------|
| [uv-aarch64-apple-darwin.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-apple-darwin.tar.gz) | Apple Silicon macOS | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-apple-darwin.tar.gz.sha256) |
| [uv-x86_64-apple-darwin.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-apple-darwin.tar.gz) | Intel macOS | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-apple-darwin.tar.gz.sha256) |
| [uv-aarch64-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-pc-windows-msvc.zip) | ARM64 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-pc-windows-msvc.zip.sha256) |
| [uv-i686-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-pc-windows-msvc.zip) | x86 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-pc-windows-msvc.zip.sha256) |
| [uv-x86_64-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-pc-windows-msvc.zip) | x64 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-pc-windows-msvc.zip.sha256) |
| [uv-aarch64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-unknown-linux-gnu.tar.gz) | ARM64 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-unknown-linux-gnu.tar.gz.sha256) |
| [uv-i686-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-unknown-linux-gnu.tar.gz) | x86 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-unknown-linux-gnu.tar.gz.sha256) |
| [uv-powerpc64le-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-powerpc64le-unknown-linux-gnu.tar.gz) | PPC64LE Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-powerpc64le-unknown-linux-gnu.tar.gz.sha256) |
| [uv-riscv64gc-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-riscv64gc-unknown-linux-gnu.tar.gz) | RISCV Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-riscv64gc-unknown-linux-gnu.tar.gz.sha256) |
| [uv-s390x-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-s390x-unknown-linux-gnu.tar.gz) | S390x Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-s390x-unknown-linux-gnu.tar.gz.sha256) |
| [uv-x86_64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-unknown-linux-gnu.tar.gz) | x64 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-unknown-linux-gnu.tar.gz.sha256) |
| [uv-armv7-unknown-linux-gnueabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-armv7-unknown-linux-gnueabihf.tar.gz) | ARMv7 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-armv7-unknown-linux-gnueabihf.tar.gz.sha256) |
| [uv-aarch64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-unknown-linux-musl.tar.gz) | ARM64 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-aarch64-unknown-linux-musl.tar.gz.sha256) |
| [uv-i686-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-unknown-linux-musl.tar.gz) | x86 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-i686-unknown-linux-musl.tar.gz.sha256) |
| [uv-riscv64gc-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-riscv64gc-unknown-linux-musl.tar.gz) | RISCV MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-riscv64gc-unknown-linux-musl.tar.gz.sha256) |
| [uv-x86_64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-unknown-linux-musl.tar.gz) | x64 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-x86_64-unknown-linux-musl.tar.gz.sha256) |
| [uv-arm-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-arm-unknown-linux-musleabihf.tar.gz) | ARMv6 MUSL Linux (Hardfloat) | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-arm-unknown-linux-musleabihf.tar.gz.sha256) |
| [uv-armv7-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-armv7-unknown-linux-musleabihf.tar.gz) | ARMv7 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.11.21/uv-armv7-unknown-linux-musleabihf.tar.gz.sha256) |

## Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the [GitHub CLI](https://cli.github.com/manual/gh_attestation_verify):
```sh
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/uv
```

You can also download the attestation from [GitHub](https://github.com/astral-sh/uv/attestations) and verify against that directly:
```sh
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>
```