From 31434f9629a6dcfa9adc2a69181289576ea05b6a Mon Sep 17 00:00:00 2001 From: hauntsaninja Date: Sat, 19 Oct 2024 17:21:39 -0700 Subject: [PATCH] Changelog for 1.13 --- CHANGELOG.md | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 4522465a484d..3737bd4f8554 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,6 +2,49 @@ ## Next release +## Mypy 1.13 + +We’ve just uploaded mypy 1.13 to the Python Package Index ([PyPI](https://pypi.org/project/mypy/)). +Mypy is a static type checker for Python. 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](http://mypy.readthedocs.io). + +Note that unlike typical releases, Mypy 1.13 does not have any changes to type checking semantics +from 1.12.1. + +### Improved performance + +Mypy 1.13 contains several performance improvements. Users can expect mypy to be 5-20% faster. +In environments with long search paths (such as environments using many editable installs), mypy +can be significantly faster, e.g. 2.2x faster in the use case targeted by these improvements. + +Mypy 1.13 allows use of the `orjson` library for handling the cache instead of the stdlib `json`, +for improved performance. You can ensure the presence of `orjson` using the `faster-cache` extra: + + python3 -m pip install -U mypy[faster-cache] + +Mypy may depend on `orjson` by default in the future. + +These improvements were contributed by Shantanu. + +List of changes: +* Significantly speed up file handling error paths (Shantanu, PR [17920](https://github.com/python/mypy/pull/17920)) +* Use fast path in modulefinder more often (Shantanu, PR [17950](https://github.com/python/mypy/pull/17950)) +* Let mypyc optimise os.path.join (Shantanu, PR [17949](https://github.com/python/mypy/pull/17949)) +* Make is_sub_path faster (Shantanu, PR [17962](https://github.com/python/mypy/pull/17962)) +* Speed up stubs suggestions (Shantanu, PR [17965](https://github.com/python/mypy/pull/17965)) +* Use sha1 for hashing (Shantanu, PR [17953](https://github.com/python/mypy/pull/17953)) +* Use orjson instead of json, when available (Shantanu, PR [17955](https://github.com/python/mypy/pull/17955)) +* Add faster-cache extra, test in CI (Shantanu, PR [17978](https://github.com/python/mypy/pull/17978)) + +### Acknowledgements +Thanks to all mypy contributors who contributed to this release: + +- Shantanu Jain +- Jukka Lehtosalo + ## Mypy 1.12 We’ve just uploaded mypy 1.12 to the Python Package Index ([PyPI](https://pypi.org/project/mypy/)). Mypy is a static type