Sourced from mypy's changelog.

Mypy 1.20.1

• Always disable sync in SQLite cache (Ivan Levkivskyi, PR 21184)
• Temporarily skip few base64 tests (Ivan Levkivskyi, PR 21193)
• Revert dict.__or__ typeshed change (Ivan Levkivskyi, PR 21186)
• Fix narrowing for match case with variadic tuples (Shantanu, PR 21192)
• Avoid narrowing type[T] in type calls (Shantanu, PR 21174)
• Fix regression for catching empty tuple in except (Shantanu, PR 21153)
• Fix reachability for frozenset and dict view narrowing (Shantanu, PR 21151)
• Fix narrowing with chained comparison (Shantanu, PR 21150)
• Avoid narrowing to unreachable at module level (Shantanu, PR 21144)
• Allow dangerous identity comparisons to Any typed variables (Shantanu, PR 21142)
• --warn-unused-config should not be a strict flag (Ivan Levkivskyi, PR 21139)

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

• A5rocks
• Aaron Wieczorek
• Adam Turner
• Ali Hamdan
• asce
• BobTheBuidler
• Brent Westbrook
• Brian Schubert
• bzoracler
• Chris Burroughs
• Christoph Tyralla
• Colin Watson
• Donghoon Nam
• E. M. Bray
• Emma Smith
• Ethan Sarp
• George Ogden
• getzze
• grayjk
• Gregor Riepl
• Ivan Levkivskyi
• James Hilliard
• James Le Cuirot
• Jeremy Nimmer
• Joren Hammudoglu
• Kai (Kazuya Ito)
• kaushal trivedi
• Kevin Kannammalil
• Lukas Geiger
• Łukasz Langa
• Marc Mueller
• Michael R. Crusoe
• michaelm-openai

... (truncated)

• c60e8bf Bump version to 1.20.1
• 842e492 Always disable sync in SQLite cache (#21184)
• e82a046 Temporarily skip few base64 tests (#21193)
• f7fa418 Revert dict.or typeshed change (#21186)
• a2e8ee1 Fix narrowing for match case with variadic tuples (#21192)
• 521f88f Avoid narrowing type[T] in type calls (#21174)
• a4876e9 Fix regression for catching empty tuple in except (#21153)
• 6fccffc Fix reachability for frozenset and dict view narrowing (#21151)
• de50419 Fix narrowing with chained comparison (#21150)
• eafcf18 Avoid narrowing to unreachable at module level (#21144)
• Additional commits viewable in compare view