0.16.8
Panniantong/Agent-Reach0.16.8Sep 16, 2026by astral-automations-bot[bot]
Upgrading?
AI Summary
This release adds support for PEP-728 TypedDict class keywords and the `__lazy_modules__` mechanism, while also improving lazy import handling and fixing deprecated alias recommendations.
Key Highlights
- Support for `__lazy_modules__` and conditional assignment.
- Recognizes PEP-728 TypedDict class keywords.
- Recognizes quoted types in `typing.TypeForm`.
- Prefers lazy imports over `TYPE_CHECKING` on Python 3.15+.
- Deprecated `ByteString` alias recommendations stopped.
New Features
- Support for `__lazy_modules__`.
- PEP-728 TypedDict support.
- Quoted types in `typing.TypeForm`.
- Lazy import preference on Python 3.15+.
- `parent_mode` argument support.
Full Release Notes
## Release Notes Released on 2026-09-16. ### Bug fixes - Visit functional `TypedDict` keyword arguments correctly ([#28584](https://github.com/astral-sh/ruff/pull/28584)) - \[`flake8-simplify`\] Detect nested `async with` under sync parent (`SIM117`) ([#27821](https://github.com/astral-sh/ruff/pull/27821)) - \[`flake8-simplify`\] Preserve operand order in `SIM109` fix ([#27824](https://github.com/astral-sh/ruff/pull/27824)) - \[`pyupgrade`\] Preserve required parentheses in multiline `UP040` fixes ([#28164](https://github.com/astral-sh/ruff/pull/28164)) - \[`pyupgrade`\] Skip `TypeVarTuple` and `ParamSpec` conversions with bounds or constraints (`UP040`, `UP046`, `UP047`) ([#28505](https://github.com/astral-sh/ruff/pull/28505)) ### Rule changes - Add support for `__lazy_modules__` ([#28459](https://github.com/astral-sh/ruff/pull/28459)) - Recognize PEP-728 `TypedDict` class keywords ([#28533](https://github.com/astral-sh/ruff/pull/28533)) - Recognize quoted types in `typing.TypeForm` ([#28507](https://github.com/astral-sh/ruff/pull/28507)) - Support conditional assignment to `__lazy_modules__` ([#28491](https://github.com/astral-sh/ruff/pull/28491)) - \[`flake8-type-checking`\] Prefer lazy imports over `TYPE_CHECKING` on Python 3.15 and later (`TC001`, `TC002`, `TC003`) ([#28541](https://github.com/astral-sh/ruff/pull/28541)) - \[`pyupgrade`\] Make the fix for `UP040` always unsafe ([#28526](https://github.com/astral-sh/ruff/pull/28526)) - \[`pyupgrade`\] Stop recommending deprecated `ByteString` aliases (`UP035`) ([#28498](https://github.com/astral-sh/ruff/pull/28498)) - \[`ruff`, `flake8-use-pathlib`\] Recognize the `parent_mode` argument (`RUF064`, `PTH103`) ([#28528](https://github.com/astral-sh/ruff/pull/28528)) - \[`ruff`\] Detect `\Z` in `pytest.raises()` match patterns (`RUF043`) ([#28598](https://github.com/astral-sh/ruff/pull/28598)) ### CLI - Use rule name and code in formatter incompatibility warnings ([#28571](https://github.com/astral-sh/ruff/pull/28571)) ### Configuration - \[`flake8-tidy-imports`\] Add `extend-banned-api` ([#28644](https://github.com/astral-sh/ruff/pull/28644)) ### Contributors - [@VedantMadane](https://github.com/VedantMadane) - [@alzeph](https://github.com/alzeph) - [@charliermarsh](https://github.com/charliermarsh) - [@fredrikblau](https://github.com/fredrikblau) - [@ntBre](https://github.com/ntBre) - [@zsol](https://github.com/zsol) - [@Aniket-a14](https://github.com/Aniket-a14) - [@r-b-1](https://github.com/r-b-1) ## Install ruff 0.16.8 ### Install prebuilt binaries via shell script ```sh curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-installer.sh | sh ``` ### Install prebuilt binaries via powershell script ```sh powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-installer.ps1 | iex" ``` ## Download ruff 0.16.8 | File | Platform | Checksum | |--------|----------|----------| | [ruff-aarch64-apple-darwin.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-apple-darwin.tar.gz) | Apple Silicon macOS | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-apple-darwin.tar.gz.sha256) | | [ruff-x86_64-apple-darwin.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-apple-darwin.tar.gz) | Intel macOS | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-apple-darwin.tar.gz.sha256) | | [ruff-aarch64-pc-windows-msvc.zip](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-pc-windows-msvc.zip) | ARM64 Windows | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-pc-windows-msvc.zip.sha256) | | [ruff-i686-pc-windows-msvc.zip](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-pc-windows-msvc.zip) | x86 Windows | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-pc-windows-msvc.zip.sha256) | | [ruff-x86_64-pc-windows-msvc.zip](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-pc-windows-msvc.zip) | x64 Windows | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-pc-windows-msvc.zip.sha256) | | [ruff-aarch64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-unknown-linux-gnu.tar.gz) | ARM64 Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-unknown-linux-gnu.tar.gz.sha256) | | [ruff-i686-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-unknown-linux-gnu.tar.gz) | x86 Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-unknown-linux-gnu.tar.gz.sha256) | | [ruff-powerpc64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-powerpc64-unknown-linux-gnu.tar.gz) | PPC64 Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-powerpc64-unknown-linux-gnu.tar.gz.sha256) | | [ruff-powerpc64le-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-powerpc64le-unknown-linux-gnu.tar.gz) | PPC64LE Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-powerpc64le-unknown-linux-gnu.tar.gz.sha256) | | [ruff-riscv64gc-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-riscv64gc-unknown-linux-gnu.tar.gz) | RISCV Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-riscv64gc-unknown-linux-gnu.tar.gz.sha256) | | [ruff-s390x-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-s390x-unknown-linux-gnu.tar.gz) | S390x Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-s390x-unknown-linux-gnu.tar.gz.sha256) | | [ruff-x86_64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-unknown-linux-gnu.tar.gz) | x64 Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-unknown-linux-gnu.tar.gz.sha256) | | [ruff-armv7-unknown-linux-gnueabihf.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-armv7-unknown-linux-gnueabihf.tar.gz) | ARMv7 Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-armv7-unknown-linux-gnueabihf.tar.gz.sha256) | | [ruff-aarch64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-unknown-linux-musl.tar.gz) | ARM64 MUSL Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-aarch64-unknown-linux-musl.tar.gz.sha256) | | [ruff-i686-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-unknown-linux-musl.tar.gz) | x86 MUSL Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-i686-unknown-linux-musl.tar.gz.sha256) | | [ruff-x86_64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-unknown-linux-musl.tar.gz) | x64 MUSL Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-x86_64-unknown-linux-musl.tar.gz.sha256) | | [ruff-arm-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-arm-unknown-linux-musleabihf.tar.gz) | ARMv6 MUSL Linux (Hardfloat) | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-arm-unknown-linux-musleabihf.tar.gz.sha256) | | [ruff-armv7-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-armv7-unknown-linux-musleabihf.tar.gz) | ARMv7 MUSL Linux | [checksum](https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-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/ruff ``` You can also download the attestation from [GitHub](https://github.com/astral-sh/ruff/attestations) and verify against that directly: ```sh gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation> ```
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