[dependabot]

Bumps pip from 24.3.1 to 26.2.2.

Changelog

Sourced from pip's changelog.

26.2.2 (2026-10-20)

Vendored Libraries

• Upgrade certifi to 2026.10.19

26.2.1 (2026-08-04)

Bug Fixes

• Reallow keyring installed in a (non-activated) virtual environment to be be used via the import provider method while installing build dependencies. ([#14227](https://github.com/pypa/pip/issues/14227) <https://github.com/pypa/pip/issues/14227>_)

26.2 (2026-07-29)

Deprecations and Removals

• Newly published packages will no longer be immediately visible to pip if the index uses caching. To install a newly published package, use --refresh-package. ([#13680](https://github.com/pypa/pip/issues/13680) <https://github.com/pypa/pip/issues/13680>_)

• Drop support for detecting legacy, non-:pep:405, virtualenv (< 20) environments. ([#14062](https://github.com/pypa/pip/issues/14062) <https://github.com/pypa/pip/issues/14062>_)

• Constraints files, including PIP_CONSTRAINT, no longer affect isolated build environments. Use --build-constraint or the PIP_BUILD_CONSTRAINT environment variable to constrain build dependencies instead.

  The --use-feature=build-constraint flag is now always enabled and has no effect. ([#14094](https://github.com/pypa/pip/issues/14094) <https://github.com/pypa/pip/issues/14094>_)

Features

• Declare support for Python 3.15 ([#14208](https://github.com/pypa/pip/issues/14208) <https://github.com/pypa/pip/issues/14208>_)
• Support self-referential extras officially. pip has supported this by accident since version 21.2. ([#11296](https://github.com/pypa/pip/issues/11296) <https://github.com/pypa/pip/issues/11296>_)
• Add --only-deps flag to instruct pip to select only the dependencies of supplied packages. It cannot be used with --no-deps, -r, --group, or --requirements-from-script. ([#11440](https://github.com/pypa/pip/issues/11440) <https://github.com/pypa/pip/issues/11440>_)
• Cache simple responses in accordance to their Cache-Control header instead of always revalidating on every request. To refresh cached package index responses and ensure newly published packages are found, use --refresh-package <package>. ([#13680](https://github.com/pypa/pip/issues/13680) <https://github.com/pypa/pip/issues/13680>_)
• Add --no-require-hashes to disable automatic enablement of --require-hashes when encountering a requirement with hashes. ([#14169](https://github.com/pypa/pip/issues/14169) <https://github.com/pypa/pip/issues/14169>_)
• Honor --only-final when sourcing requirements with -r pylock.toml. ([#13950](https://github.com/pypa/pip/issues/13950) <https://github.com/pypa/pip/issues/13950>_)
• Add support for pylock.toml upload-time field, so --uploaded-prior-to works with -r pylock.toml. ([#14168](https://github.com/pypa/pip/issues/14168) <https://github.com/pypa/pip/issues/14168>_)

... (truncated)

Commits

• b3b696f Bump for release
• b0c56c1 Upgrade certifi to 2026.10.19
• 634a6ec Bump for release
• ae2eb4f Revert build dependency installer isolation for legacy build environment (#14...
• 6236392 Merge pull request #14213 from pypa/release/26.2
• da4b2cc Bump for development
• 4b6ae5c Bump for release
• 50b6d3c Update AUTHORS.txt
• dbddfbd Tweak news entries for pip 26.2 (#14212)
• 6576b75 Merge pull request #14165 from sbidoul/refactor-pylock-hanling-sbi
• Additional commits viewable in compare view

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[dependabot]

Superseded by #239.