Build(deps-dev): Bump the minor group with 3 updates

[dependabot]

Bumps the minor group with 3 updates: mypy, uv and nox.

Updates mypy from 2.1.0 to 2.3.0

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Packaging changes

• No longer provide mypyc-accelerated wheels for macOS x86_64 [mypyc-wheels #119](mypyc/mypy_mypyc-wheels#119)

Mypy 2.3

We've just uploaded mypy 2.3.0 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.

The Upcoming Switch to the New Native Parser

We are planning to enable the new native parser (--native-parser) by default soon. We recommend that you test the native parser in your projects and report any issues in the mypy issue tracker.

Mypyc Free-threading Memory Safety

Free-threaded Python builds that don't have the GIL require additional synchronization primitives or lock-free algorithms to ensure memory safety when there are race conditions (for example, when a thread reads a list item while another thread writes the same list item concurrently). This release greatly improves memory safety of free threading.

List operations are now memory-safe on free threaded Python builds, even in the presence of race conditions. This has some performance cost. For list-heavy workloads, using librt.vecs.vec instead of list is often significantly faster, but note that vec is not (and likely won't be) fully memory safe, and the user is expected to avoid race conditions. The newly introduced librt.threading.Lock helps with this. Using variable-length tuples can also be more efficient than lists, since tuples are immutable and don't require expensive synchronization to ensure memory safety.

Instance attribute access is also (mostly) memory safe now on free-threaded builds in the presence of race conditions. We are planning to fix the remaining unsafe cases in a future release.

Full list of changes:

• Make attribute access memory safe on free-threaded builds (Jukka Lehtosalo, PR 21705)
• Fix unsafe borrowing of instance attributes with free-threading (Jukka Lehtosalo, PR 21688)
• Make list get/set item more memory safe on free-threaded builds (Jukka Lehtosalo, PR 21683)
• Don't borrow list items on free-threaded builds (Jukka Lehtosalo, PR 21679)
• Make multiple assignment from list memory-safe on free-threaded builds (Jukka Lehtosalo, PR 21684)

... (truncated)

Commits

• 8aabf84 Drop +dev from version
• 4d8ad2a Update changelog for 2.3 release (#21728)
• 2c21546 [mypyc] Update documentation of race conditions under free threading (#21726)
• a9f62a3 [mypyc] Make attribute access memory safe on free-threaded builds (#21705)
• 0faa413 Use PYODIDE environment variable for Emscripten cross-compilation detection...
• 3d75cdb [mypyc] Borrow final attributes more aggressively (#21702)
• 24c237d [mypyc] Improve documentation of Final (#21713)
• b5be217 [mypyc] Update free threading Python compatibility docs (#21711)
• cbcb51a Narrow for frozendict membership check (#21709)
• af2bc0f Sync typeshed (#21707)
• Additional commits viewable in compare view

Updates uv from 0.11.26 to 0.12.0

Release notes

Sourced from uv's releases.

0.12.0

Release Notes

Released on 2026-07-28.

Since we released uv 0.11.0 in March, we've accumulated changes that improve correctness, safety, and compatibility with specifications, but could break some workflows. This release contains those changes; many have been marked as breaking out of an abundance of caution.

We expect most users to be able to upgrade without making changes.

There are no breaking changes to the configuration of the uv build backend. If your [build-system] table includes an upper bound on uv_build, update it to allow uv_build 0.12, e.g., uv_build>=0.11.32,<0.13.

Breaking changes

• Define build systems by default with uv init (#19197)

  Projects created with uv init now declare a build system and are packaged by default. This was the default project layout all the way back in v0.3, but we found that the use of the hatchling build system was confusing to newcomers and consequently dropped use of a build system by default in v0.4. Since then, we've created our own build system (uv_build) with tight integration with uv and are excited to restore the default to a best-practice project layout.

  Previously, uv init example created an unpackaged layout containing main.py and a pyproject.toml without a build system. The project could declare dependencies but was not itself installed into its virtual environment.

  Now, uv init example defines a [build-system] using uv_build, places application source code in src/example, and includes a [project.scripts] entry named example. Defining a build system allows the project to be imported from tests or other code, installed as a dependency, and run as a command:

  $ uv init example
  $ cd example
  $ uv run example
  Hello from example!

  Existing projects are unaffected. Use uv init --no-package example to create the previous unpackaged layout without a build system.

  See the project creation documentation for more details.

  This stabilizes the packaged-init preview feature.

• Reject unsupported source distribution and wheel archive formats (#18927)

  PEP 625 requires source distributions to use .tar.gz archives. Previously, uv also accepted legacy formats such as .tar.bz2 and .tar.xz. Those formats are now rejected, including when referenced by an existing lockfile. Legacy .zip source distributions remain supported for backwards compatibility.

  Wheels and other ZIP archives can no longer contain entries compressed with bzip2, LZMA, or XZ. Entries must use the stored, DEFLATE, or zstd compression methods.

  Removing support for uncommon compression methods reduces uv's compression dependencies and the attack surface exposed when processing untrusted packages.

  You cannot opt out of this behavior. If you depend on a legacy source distribution that uses an unsupported format, we recommend rebuilding it as a .tar.gz archive and regenerating any lockfile containing references to the legacy archive.

• Reject wheel files that could replace the Python interpreter (#20748, #20749)

  uv already rejected wheel entry points named python, but case variants such as Python were still accepted. On case-insensitive filesystems, including common macOS and Windows setups, these entry points could overwrite the virtual environment's interpreter.

  Wheels could also place interpreter files in their .data/scripts directory or in paths such as .data/data/bin/python, bypassing the entry-point check and replacing the interpreter during installation.

... (truncated)

Changelog

Sourced from uv's changelog.

0.12.0

Released on 2026-07-28.

Since we released uv 0.11.0 in March, we've accumulated changes that improve correctness, safety, and compatibility with specifications, but could break some workflows. This release contains those changes; many have been marked as breaking out of an abundance of caution.

We expect most users to be able to upgrade without making changes.

There are no breaking changes to the configuration of the uv build backend. If your [build-system] table includes an upper bound on uv_build, update it to allow uv_build 0.12, e.g., uv_build>=0.11.32,<0.13.

Breaking changes

• Define build systems by default with uv init (#19197)

  Projects created with uv init now declare a build system and are packaged by default. This was the default project layout all the way back in v0.3, but we found that the use of the hatchling build system was confusing to newcomers and consequently dropped use of a build system by default in v0.4. Since then, we've created our own build system (uv_build) with tight integration with uv and are excited to restore the default to a best-practice project layout.

  Previously, uv init example created an unpackaged layout containing main.py and a pyproject.toml without a build system. The project could declare dependencies but was not itself installed into its virtual environment.

  Now, uv init example defines a [build-system] using uv_build, places application source code in src/example, and includes a [project.scripts] entry named example. Defining a build system allows the project to be imported from tests or other code, installed as a dependency, and run as a command:

  $ uv init example
  $ cd example
  $ uv run example
  Hello from example!

  Existing projects are unaffected. Use uv init --no-package example to create the previous unpackaged layout without a build system.

  See the project creation documentation for more details.

  This stabilizes the packaged-init preview feature.

• Reject unsupported source distribution and wheel archive formats (#18927)

  PEP 625 requires source distributions to use .tar.gz archives. Previously, uv also accepted legacy formats such as .tar.bz2 and .tar.xz. Those formats are now rejected, including when referenced by an existing lockfile. Legacy .zip source distributions remain supported for backwards compatibility.

  Wheels and other ZIP archives can no longer contain entries compressed with bzip2, LZMA, or XZ. Entries must use the stored, DEFLATE, or zstd compression methods.

  Removing support for uncommon compression methods reduces uv's compression dependencies and the attack surface exposed when processing untrusted packages.

  You cannot opt out of this behavior. If you depend on a legacy source distribution that uses an unsupported format, we recommend rebuilding it as a .tar.gz archive and regenerating any lockfile containing references to the legacy archive.

• Reject wheel files that could replace the Python interpreter (#20748, #20749)

  uv already rejected wheel entry points named python, but case variants such as Python were still accepted. On case-insensitive filesystems, including common macOS and Windows setups, these entry points could overwrite the virtual environment's interpreter.

  Wheels could also place interpreter files in their .data/scripts directory or in paths such as .data/data/bin/python, bypassing the entry-point check and replacing the interpreter during installation.

  uv now rejects case-insensitive variants of reserved interpreter names and wheel data files that would be installed over an interpreter. This includes names such as Python, python.py, and Python.exe, along with other reserved interpreter names and their versioned variants.

  You cannot opt out of these checks. Rename conflicting entry points or wheel data files and rebuild the affected wheel.

... (truncated)

Commits

• b88d7c5 Archive the 0.11.x changelog (#20777)
• faff952 Update Rust crate jiff to v0.2.34 (#20710)
• 4c28d9c Keep changelog paragraphs on single lines (#20778)
• 43a1288 Bump version to 0.12.0 (#20775)
• 8fe5f80 Sync latest Python releases (#20682)
• b187a51 Honor certificate overrides when running remote scripts (#20767)
• 6e79013 Package explicitly requested applications by default (#20773)
• e4602de Reject broken .venv symlinks and surface metadata errors (#20433)
• 9391f97 Reject multi-dot pylock filenames (#20440)
• 06bba12 Honor explicit certificate sources even when empty (#20741)
• Additional commits viewable in compare view

Updates nox from 2026.4.10 to 2026.7.11

Release notes

Sourced from nox's releases.

2026.07.11 🏪

This release drops Python 3.9 and brings a batch of performance improvements, like caching uv detection and interpreter discovery, plus lazy module imports on Python 3.15. Various bugs were fixed as well.

We'd like to thank the following folks who contributed to this release:

• @​henryiii
• @​davidhewitt
• @​SAY-5 (first contribution)
• @​Himanshuagrawal4 (first contribution)
• @​TejasAmle (first contribution)
• @​felixfontein (first contribution)

Features:

• Drop Python 3.9 by @​henryiii in wntrblm/nox#1049
• Add return_code property to CommandFailed exception by @​felixfontein in wntrblm/nox#1129

Performance:

• Cache session-name normalization, uv detection, interpreter discovery, and metadata reads by @​henryiii in wntrblm/nox#1113
• Lazy modules on Python 3.15 by @​henryiii in wntrblm/nox#1115

Fixes:

• Script-mode pip resolution on Windows and --download-python fallback by @​henryiii in wntrblm/nox#1110
• Don't crash when a parametrized session has an empty parameter list by @​henryiii in wntrblm/nox#1109
• Hash fully non-ASCII session names instead of returning the envdir by @​henryiii in wntrblm/nox#1108
• Interpreter-resolution edge cases in virtualenv.py by @​henryiii in wntrblm/nox#1111
• Create missing parent directories for the session cache dir by @​henryiii in wntrblm/nox#1104
• Enforce --error-on-external-run even when log=False by @​henryiii in wntrblm/nox#1107
• Handle = in set_env values and out-of-tree change_dir in tox-to-nox by @​henryiii in wntrblm/nox#1105
• Return empty dict from load_toml when script file is missing by @​SAY-5 in wntrblm/nox#1096
• Show envvars in CLI help by @​henryiii in wntrblm/nox#1085

Documentation:

• Add PyO3 as a user by @​davidhewitt in wntrblm/nox#1123
• List micromamba in --default-venv-backend supported names by @​SAY-5 in wntrblm/nox#1092
• Clarify session.notify target docs by @​Himanshuagrawal4 in wntrblm/nox#1099
• Document venv backend for EOL Python by @​Himanshuagrawal4 in wntrblm/nox#1101
• Fix typo in README installation section by @​TejasAmle in wntrblm/nox#1097

Internal changes:

• Add Python 3.15 to the test matrix and classifiers by @​henryiii in wntrblm/nox#1133
• Isolate run_nox envdir to fix flaky test_main_requires by @​henryiii in wntrblm/nox#1134
• Assorted simplifications and dead-code removal by @​henryiii in wntrblm/nox#1112
• Remove Python 3.9-era pins/backports and tighten generator annotations by @​henryiii in wntrblm/nox#1106
• Run tests in parallel by @​henryiii in wntrblm/nox#965

... (truncated)

Changelog

Sourced from nox's changelog.

Changelog

2026.07.11

This release drops Python 3.9 and brings a batch of performance improvements, like caching uv detection and interpreter discovery, plus lazy module imports on Python 3.15. Various bugs were fixed as well.

We'd like to thank the following folks who contributed to this release:

• @​henryiii
• @​davidhewitt
• @​SAY-5 (first contribution)
• @​Himanshuagrawal4 (first contribution)
• @​TejasAmle (first contribution)
• @​felixfontein (first contribution)

Features:

• Drop Python 3.9 by @​henryiii in wntrblm/nox#1049
• Add return_code property to CommandFailed exception by @​felixfontein in wntrblm/nox#1129

Performance:

• Cache session-name normalization, uv detection, interpreter discovery, and metadata reads by @​henryiii in wntrblm/nox#1113
• Lazy modules on Python 3.15 by @​henryiii in wntrblm/nox#1115

Fixes:

• Script-mode pip resolution on Windows and --download-python fallback by @​henryiii in wntrblm/nox#1110
• Don't crash when a parametrized session has an empty parameter list by @​henryiii in wntrblm/nox#1109
• Hash fully non-ASCII session names instead of returning the envdir by @​henryiii in wntrblm/nox#1108
• Interpreter-resolution edge cases in virtualenv.py by @​henryiii in wntrblm/nox#1111
• Create missing parent directories for the session cache dir by @​henryiii in wntrblm/nox#1104
• Enforce --error-on-external-run even when log=False by @​henryiii in wntrblm/nox#1107
• Handle = in set_env values and out-of-tree change_dir in tox-to-nox by @​henryiii in wntrblm/nox#1105
• Return empty dict from load_toml when script file is missing by @​SAY-5 in wntrblm/nox#1096
• Show envvars in CLI help by @​henryiii in wntrblm/nox#1085

Documentation:

• Add PyO3 as a user by @​davidhewitt in wntrblm/nox#1123
• List micromamba in --default-venv-backend supported names by @​SAY-5 in wntrblm/nox#1092
• Clarify session.notify target docs by @​Himanshuagrawal4 in wntrblm/nox#1099
• Document venv backend for EOL Python by @​Himanshuagrawal4 in wntrblm/nox#1101
• Fix typo in README installation section by @​TejasAmle in wntrblm/nox#1097

Internal changes:

... (truncated)

Commits

• 3284968 chore: prepare release 2026.07.11 (#1132)
• d73f96a ci: add Python 3.15 to the test matrix and classifiers (#1133)
• 5391985 test: isolate run_nox envdir to fix flaky test_main_requires (#1134)
• 390d817 feat: add return_code to CommandFailed. (#1129)
• f1d5210 chore(deps): bump the github-actions group with 2 updates (#1125)
• 0894b73 chore(deps): bump the pre-commit group with 4 updates (#1126)
• 9b747ed ci: experimental MSYS2/MinGW test run (#1122)
• 8a44270 docs: add PyO3 as a user (#1123)
• 5bd0f83 perf: lazy modules on Python 3.15 (#1115)
• 982fcfa chore(deps): bump dependency-groups in the pre-commit group (#1121)
• Additional commits viewable in compare view

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