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Sourced from coverage's changelog.

Version 7.8.2 — 2025-05-23

• Wheels are provided for Windows ARM64 on Python 3.11, 3.12, and 3.13. Thanks, Finn Womack <pull 1972_>_.

.. _issue 1971: nedbat/coveragepy#1971 .. _pull 1972: nedbat/coveragepy#1972

.. _changes_7-8-1:

Version 7.8.1 — 2025-05-21

• A number of EncodingWarnings were fixed that could appear if you've enabled PYTHONWARNDEFAULTENCODING, fixing issue 1966. Thanks, Henry Schreiner <pull 1967_>.

• Fixed a race condition when using sys.monitoring with free-threading Python, closing issue 1970_.

.. _issue 1966: nedbat/coveragepy#1966 .. _pull 1967: nedbat/coveragepy#1967 .. _issue 1970: nedbat/coveragepy#1970

.. _changes_7-8-0:

• 51ab2e5 build: have to keep expected dist counts in sync
• be7bbf2 docs: sample HTML for 7.8.2
• 3cee850 docs: prep for 7.8.2
• 39bc6b0 docs: provide more details if the kit matrix is edited.
• a608fb3 build: add support for Windows arm64 (#1972)
• 2fe6225 build: run tox lint if actions have changed
• 3d93a78 docs: docs need scriv for making github releases
• 0c443a2 build: bump version to 7.8.2
• ed98b87 docs: sample HTML for 7.8.1
• b98bc9b docs: prep for 7.8.1
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Sourced from ruff's releases.

0.11.12

Release Notes

Preview features

• [airflow] Revise fix titles (AIR3) (#18215)
• [pylint] Implement missing-maxsplit-arg (PLC0207) (#17454)
• [pyupgrade] New rule UP050 (useless-class-metaclass-type) (#18334)
• [flake8-use-pathlib] Replace os.symlink with Path.symlink_to (PTH211) (#18337)

Bug fixes

• [flake8-bugbear] Ignore __debug__ attribute in B010 (#18357)
• [flake8-async] Fix anyio.sleep argument name (ASYNC115, ASYNC116) (#18262)
• [refurb] Fix FURB129 autofix generating invalid syntax (#18235)

Rule changes

• [flake8-implicit-str-concat] Add autofix for ISC003 (#18256)
• [pycodestyle] Improve the diagnostic message for E712 (#18328)
• [flake8-2020] Fix diagnostic message for != comparisons (YTT201) (#18293)
• [pyupgrade] Make fix unsafe if it deletes comments (UP010) (#18291)

Documentation

• Simplify rules table to improve readability (#18297)
• Update editor integrations link in README (#17977)
• [flake8-bugbear] Add fix safety section (B006) (#17652)

Contributors

• @​AlexWaygood
• @​CodeMan62
• @​InSyncWithFoo
• @​Kalmaegi
• @​LaBatata101
• @​Lee-W
• @​MaddyGuthridge
• @​MatthewMckee4
• @​MichaReiser
• @​Vasanth-96
• @​carljm
• @​charliermarsh
• @​chirizxc
• @​dcreager
• @​dhruvmanila
• @​dsherret
• @​dylwil3
• @​felixscherz
• @​fennr

... (truncated)

Sourced from ruff's changelog.

0.11.12

Preview features

• [airflow] Revise fix titles (AIR3) (#18215)
• [pylint] Implement missing-maxsplit-arg (PLC0207) (#17454)
• [pyupgrade] New rule UP050 (useless-class-metaclass-type) (#18334)
• [flake8-use-pathlib] Replace os.symlink with Path.symlink_to (PTH211) (#18337)

Bug fixes

• [flake8-bugbear] Ignore __debug__ attribute in B010 (#18357)
• [flake8-async] Fix anyio.sleep argument name (ASYNC115, ASYNC116) (#18262)
• [refurb] Fix FURB129 autofix generating invalid syntax (#18235)

Rule changes

• [flake8-implicit-str-concat] Add autofix for ISC003 (#18256)
• [pycodestyle] Improve the diagnostic message for E712 (#18328)
• [flake8-2020] Fix diagnostic message for != comparisons (YTT201) (#18293)
• [pyupgrade] Make fix unsafe if it deletes comments (UP010) (#18291)

Documentation

• Simplify rules table to improve readability (#18297)
• Update editor integrations link in README (#17977)
• [flake8-bugbear] Add fix safety section (B006) (#17652)

0.11.11

Preview features

• [airflow] Add autofixes for AIR302 and AIR312 (#17942)
• [airflow] Move rules from AIR312 to AIR302 (#17940)
• [airflow] Update AIR301 and AIR311 with the latest Airflow implementations (#17985)
• [flake8-simplify] Enable fix in preview mode (SIM117) (#18208)

Bug fixes

• Fix inconsistent formatting of match-case on [] and _ (#18147)
• [pylint] Fix PLW1514 not recognizing the encoding positional argument of codecs.open (#18109)

CLI

• Add full option name in formatter warning (#18217)

Documentation

• Fix rendering of admonition in docs (#18163)
• [flake8-print] Improve print/pprint docs for T201 and T203 (#18130)

... (truncated)

• aee3af0 Bump 0.11.12 (#18369)
• 04dc48e [refurb] Fix FURB129 autofix generating invalid syntax (#18235)
• 27743ef [pylint] Implement missing-maxsplit-arg (PLC0207) (#17454)
• c60b4d7 [ty] Add subtyping between Callable types and class literals with __init__ ...
• 16621fa [flake8-bugbear ] Add fix safety section (B006) (#17652)
• e23d4ea [flake8-bugbear] Ignore __debug__ attribute in B010 (#18357)
• 452f992 [ty] Simplify signature types, use them in CallableType (#18344)
• a5ebb3f [ty] Support ephemeral uv virtual environments (#18335)
• 9925910 Add a ViolationMetadata::rule method (#18234)
• a3ee6bb Return DiagnosticGuard from Checker::report_diagnostic (#18232)
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Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 1.16

We’ve just uploaded mypy 1.16 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features and bug fixes. 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.

Different Property Getter and Setter Types

Mypy now supports using different types for a property getter and setter:

class A:
    _value: int
@property
def foo(self) -> int:
    return self._value
@foo.setter

def foo(self, x: str | int) -> None:

try:

self._value = int(x)

except ValueError:

raise Exception(f"'{x}' is not a valid value for 'foo'")

This was contributed by Ivan Levkivskyi (PR 18510).

Flexible Variable Redefinitions (Experimental)

Mypy now allows unannotated variables to be freely redefined with different types when using the experimental --allow-redefinition-new flag. You will also need to enable --local-partial-types. Mypy will now infer a union type when different types are assigned to a variable:

# mypy: allow-redefinition-new, local-partial-types
def f(n: int, b: bool) -> int | str:
if b:
x = n
else:
</tr></table>

... (truncated)

• 9e72e96 Update version to 1.16.0
• 8fe719f Add changelog for 1.16 (#19138)
• 2a036e7 Revert "Infer correct types with overloads of Type[Guard | Is] (#19161)
• b6da4fc Allow enum members to have type objects as values (#19160)
• 334469f [mypyc] Improve documentation of native and non-native classes (#19154)
• a499d9f Document --allow-redefinition-new (#19153)
• 96525a2 Merge commit '9e45dadcf6d8dbab36f83d9df94a706c0b4f9207' into release-1.16
• 9e45dad Clear more data in TypeChecker.reset() instead of asserting (#19087)
• 772cd0c Add --strict-bytes to --strict (#19049)
• 0b65f21 Admit that Final variables are never redefined (#19083)
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