- Update to 20.2.4:
Deprecations and Removals
* Document that certain removals can be fast tracked.
* Document that Python versions are generally supported until
PyPI usage falls below 5%
Features
* New resolver: Avoid accessing indexes when the installed
candidate is preferred and considered good enough
* Improve error message friendliness when an environment
has packages with corrupted metadata
* Cache package listings on index packages so they are guarenteed
to stay stable during a pip command session. This also improves
performance when a index page is accessed multiple times during
the command session
* New resolver: Tweak resolution logic to improve user experience
when user-supplied requirements conflict
Bug Fixes
* New resolver: Correctly respect ``Requires-Python`` metadata
to reject incompatible packages in ``--no-deps`` mode
* New resolver: Pick up hash declarations in constraints files
and use them to filter available distributions
* New resolver: If a package appears multiple times in user
specification with different ``--hash`` options, only hashes
that present in all specifications should be allowed