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Jan 13, 2025
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Update CHANGELOG.md #18453

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10 changes: 7 additions & 3 deletions CHANGELOG.md
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Expand Up @@ -4,7 +4,10 @@

### Performance improvements

TODO
Mypy may be 5-30% faster. This improvement comes largely from tuning the performance of the
garbage collector.

Contributed by Jukka Lehtosalo (PR [18306](https://github.com/python/mypy/pull/18306)).

### Drop Support for Python 3.8

Expand Down Expand Up @@ -33,13 +36,14 @@ Use this flag to disable this behavior. `--strict-bytes` will be enabled by defa
Contributed by Ali Hamdan (PR [18137](https://github.com/python/mypy/pull/18263/)) and
Shantanu Jain (PR [13952](https://github.com/python/mypy/pull/13952)).

### Improvements to partial type handling in loops
### Improvements to reachability analysis and partial type handling in loops

This change results in mypy better modelling control flow within loops and hence detecting several
issues it previously did not detect. In some cases, this change may require use of an additional
explicit annotation of a variable.

Contributed by Christoph Tyralla (PR [18180](https://github.com/python/mypy/pull/18180)).
Contributed by Christoph Tyralla (PR [18180](https://github.com/python/mypy/pull/18180),
[PR](https://github.com/python/mypy/pull/18433)).

(Speaking of partial types, another reminder that mypy plans on enabling `--local-partial-types`
by default in **mypy 2.0**).
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