Release Notes

Released on 2026-06-26.

Security

This release updates our tar library, astral-tokio-tar, to v0.6.3, which includes over 20 changes that harden our tar handling against parser differentials. uv may reject source distributions with malformed or ambiguous content that were previously accepted.

See the upstream commits for a full list of changes.

Enhancements

• Add a full "lockfile" to tool receipts (#18937)
• Allow scoped overrides to add dependencies (#19974)
• Avoid writing redundant lockfile markers with tool.uv.environments (#19933)
• Factor supported environments out of lockfile markers (#19969)
• Recommend our own build backend in the build frontend (#19994)
• Reject wheels with multiple .dist-info directories (#19986)
• Simplify dependency markers under parent reachability (#19971)
• Support scoped dependency exclusions (#19977)
• Support scoped dependency overrides (#19970)
• Explain why files are skipped in registry index parsing (#19983)

Preview features

• Add uv workspace list --scripts (#20009)
• Support centralised environments in uv venv (#19912)
• Use locked ty versions in uv check (#19884)
• Add centralized storage of project environments (#18214)
• Verify lockfile hashes before reusing a cached ty in uv check (#19995)
• Use locked dependency selection for uv check --script (#19989)

Bug fixes

• Preserve standalone markers in workspace metadata (#20011)
• Reject uv build if the cache dir is enclosed (#19991)

Install uv 0.11.25

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/uv/releases/download/0.11.25/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/uv/releases/download/0.11.25/uv-installer.ps1 | iex"

Download uv 0.11.25

File	Platform	Checksum
uv-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
uv-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
uv-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
uv-i686-pc-windows-msvc.zip	x86 Windows	checksum
uv-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
uv-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
uv-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
uv-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
uv-riscv64gc-unknown-linux-gnu.tar.gz	RISCV Linux	checksum
uv-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
uv-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
uv-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
uv-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
uv-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
uv-riscv64gc-unknown-linux-musl.tar.gz	RISCV MUSL Linux	checksum
uv-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
uv-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
uv-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

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:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/uv

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>