Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 2.1

We’ve just uploaded mypy 2.1.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

librt.vecs: Fast Growable Array Type for Mypyc

The new librt.vecs module provides an efficient growable array type vec that is optimized for mypyc use. It provides fast, packed arrays with integer and floating point value types, which can be several times faster than list, and tens of times faster than array.array in code compiled using mypyc. It also supports nested vec objects and non-value-type items, such as vec[vec[str]].

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo.

librt.random: Fast Pseudo-Random Number Generation

The new librt.random module provides fast pseudo-random number generation that is optimized for code compiled using mypyc. It can be 3x to 10x faster than the stdlib random module in compiled code.

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo (PR 21433).

Mypyc Improvements

• Enable incremental self-compilation (Vaggelis Danias, PR 21369)
• Make compilation order with multiple files consistent (Piotr Sawicki, PR 21419)
• Fix crash on accessing StopAsyncIteration (Piotr Sawicki, PR 21406)
• Fix incremental compilation with separate flag (Vaggelis Danias, PR 21299)

Fixes to Crashes

• Fix crash on partial type with --allow-redefinition and global declaration (Jukka Lehtosalo, PR 21428)
• Fix broken awaitable generator patching (Ivan Levkivskyi, PR 21435)

... (truncated)

• c1c336d Remove +dev from version
• 74df14b Add changelog for mypy 2.1 (#21464)
• 022d9bc Revert "TypeForm: Enable by default (#21262)"
• 8826288 [mypyc] Document librt.random (#21463)
• 3f4067b Bump librt version to 0.11.0 (#21458)
• 2b1eb58 [mypyc] Enable incremental self-compilation (#21369)
• 8152f4a Respect file config comments for stale modules (#21444)
• 116d60b Fix nondeterminism from nonassociativity of overload joins (#21455)
• 6c4af8e Fix function call message change for small number of args (#21432)
• 4b8fdca [mypyc] Add librt.random module (#21433)
• Additional commits viewable in compare view

Sourced from ruff's releases.

0.15.17

Release Notes

Released on 2026-06-11.

Preview features

• Allow human-readable names in suppression comments (#25614)
• Fix handling of ignore comments within a disable/enable pair (#25845)
• Prioritize human-readable names in CLI output (#25869)
• Respect diagnostic start and parent ranges and trailing comments in ruff:ignore suppressions (#25673)
• [flake8-async] Add trio.as_safe_channel to safe decorators (ASYNC119) (#25775)
• [flake8-pytest-style] Also check pytest_asyncio fixtures (#25375)
• [ruff] Ban pytest autouse fixtures (RUF076) (#25477)
• [pyupgrade] Add from __future__ import annotations automatically (UP007, UP045) (#23259)

Bug fixes

• Fix diagnostic when ruff:enable or ruff:disable appears where ruff:ignore is expected (#25700)
• [pyupgrade] Preserve leading empty literals to avoid syntax errors (UP032) (#25491)

Rule changes

• [flake8-pytest-style] Clarify diagnostic message for single parameters (PT007) (#25592)
• [numpy] Drop autofix for np.in1d (NPY201) (#25612)
• [pylint] Exempt Python version comparisons (PLR2004) (#25743)

Performance

• Reserve AST Vecs with correct capacity for common cases (#25451)

Formatter

• Preserve whitespace for Quarto cell option comments (#25641)

CLI

• Allow rule names in ruff rule (#25640)

Other changes

• Fix playground diagnostics scrollbars (#25642)

Contributors

• @​SuryanshSS1011
• @​anishgirianish
• @​romero-deshaw
• @​karlhillx
• @​carljm

... (truncated)

Sourced from ruff's changelog.

0.15.17

Released on 2026-06-11.

Preview features

• Allow human-readable names in suppression comments (#25614)
• Fix handling of ignore comments within a disable/enable pair (#25845)
• Prioritize human-readable names in CLI output (#25869)
• Respect diagnostic start and parent ranges and trailing comments in ruff:ignore suppressions (#25673)
• [flake8-async] Add trio.as_safe_channel to safe decorators (ASYNC119) (#25775)
• [flake8-pytest-style] Also check pytest_asyncio fixtures (#25375)
• [ruff] Ban pytest autouse fixtures (RUF076) (#25477)
• [pyupgrade] Add from __future__ import annotations automatically (UP007, UP045) (#23259)

Bug fixes

• Fix diagnostic when ruff:enable or ruff:disable appears where ruff:ignore is expected (#25700)
• [pyupgrade] Preserve leading empty literals to avoid syntax errors (UP032) (#25491)

Rule changes

• [flake8-pytest-style] Clarify diagnostic message for single parameters (PT007) (#25592)
• [numpy] Drop autofix for np.in1d (NPY201) (#25612)
• [pylint] Exempt Python version comparisons (PLR2004) (#25743)

Performance

• Reserve AST Vecs with correct capacity for common cases (#25451)

Formatter

• Preserve whitespace for Quarto cell option comments (#25641)

CLI

• Allow rule names in ruff rule (#25640)

Other changes

• Fix playground diagnostics scrollbars (#25642)

Contributors

• @​SuryanshSS1011
• @​anishgirianish
• @​romero-deshaw
• @​karlhillx
• @​carljm
• @​ntBre

... (truncated)

• 7c645a9 Bump 0.15.17 (#25872)
• f381eb1 Prioritize human-readable names in CLI output (#25869)
• b9b4546 Minor workflow simplification (#25870)
• 1e77ba0 [ty] Move PreformattedBlockScanner to format-agnostic location. (#25856)
• 6f2b772 [ty] Preserve nominal type of enum.property instances (#25849)
• be4777c [ty] Fix site-package error when multiple versions of pythons are installed i...
• 53f6ff7 Allow human-readable names in suppression comments (#25614)
• 6740325 [ty] Restrict uncached raw signature access (#25866)
• 970b1bf Auto-update snapshots when syncing typeshed (#25841)
• 0785793 Fix handling of ignore comments within a disable/enable pair (#25845)
• Additional commits viewable in compare view

• 8a39635 Bump pylint to 4.0.6, update changelog (#11105)
• 150f23c [Backport maintenance/4.0.x] Allow digits in ParamSpec and TypeVarTuple names...
• 8b6251e [Backport maintenance/4.0.x] Fix crash when enum member inference fails (#11093)
• d57aadb [Backport maintenance/4.0.x] Fix implicit-str-concat false positive for mix...
• d9ea8d9 [Backport maintenance/4.0.x] Fix unnecessary-comprehension suggestion when ...
• cb1792a [Backport maintenance/4.0.x] Allow digits in TypeVar names for invalid-name c...
• ee2ab9a Handle InferenceError in decorator return analysis
• 5bb5498 [Backport maintenance/4.0.x] Fix crash in typecheck checker when metaclass ar...
• a940533 [Backport maintenance/4.0.x] Fix a crash in consider-using-enumerate for no...
• b7a873a [Backport maintenance/4.0.x] Fix crash in deprecated checker for non-string `...
• Additional commits viewable in compare view

Sourced from pip-audit's releases.

v2.10.1

Fixed

• Fixed a KeyError crash when an OSV vulnerability record contains an affected entry that omits the optional ranges field (#1046)

Sourced from pip-audit's changelog.

[2.10.1]

Fixed

• Fixed a KeyError crash when an OSV vulnerability record contains an affected entry that omits the optional ranges field (#1046)

• 8894eb8 Merge pull request #1056 from pypa/copilot/release-2101
• 1c625b7 Update version in README.md to 2.10.1
• fd2094b Prep 2.10.1 release
• 58d2488 build(deps): bump github/codeql-action from 4.35.2 to 4.36.1 (#1052)
• 8df9420 build(deps): bump zizmorcore/zizmor-action from 0.5.3 to 0.5.6 (#1044)
• 3f618d3 build(deps): bump actions/checkout from 6.0.2 to 6.0.3 (#1053)
• 4849132 Restrict OIDC token to publish job (#1050)
• c1eb69a Fix KeyError when OSV affected entry omits optional ranges field (#1046)
• 68de07f Merge pull request #1054 from pypa/fix/1047
• ef31c9e Formatting fixes
• Additional commits viewable in compare view