Sourced from coverage's releases.

7.15.4

Version 7.15.4 — 2026-08-06

• Fix: in the HTML report, a source file name containing a double quote (legal on POSIX) wasn’t escaped where it’s dropped into the href of the index and prev/next links, so it could close the attribute early and inject markup. Page URLs are now escaped. Thanks, Rajath Mohare.
• Fix: the LCOV report wrote file names and other fields into its line-oriented records without neutralizing control characters. A measured file whose name contained a newline (legal on POSIX) could forge extra records, inflating the coverage seen by tools that read the report. Control characters in a field are now replaced. Thanks, Rajath Mohare.
• Wheels are now provided for Python 3.15.

➡️  PyPI page: coverage 7.15.4. :arrow_right:  To install: python3 -m pip install coverage==7.15.4

7.15.3

Version 7.15.3 — 2026-08-02

• Fix: the sysmon core is incompatible with dynamic contexts. Previously, the combination would be prevented when read from the coverage.py configuration. But using the context API as pytest-cov does, contexts would be silently dropped. Now a warning is issued, thanks to Jisang Han. Closes issue 2200.
• A performance improvement in the low-level line number bookkeeping when combining data files, thanks to Kevin Turcios.
• Performance improvement in HTML reporting by reducing the number of times files have to be parsed, thanks to Kevin Turcios.

➡️  PyPI page: coverage 7.15.3. :arrow_right:  To install: python3 -m pip install coverage==7.15.3

7.15.2

Version 7.15.2 — 2026-07-15

• Fix: one of the performance improvements in 7.15.1 (pull 2215) dramatically increased memory use during reporting for large projects. Now we use a different approach that is both faster and slimmer than 7.15.0. Fixes issue 2229.

➡️  PyPI page: coverage 7.15.2. :arrow_right:  To install: python3 -m pip install coverage==7.15.2

7.15.1

Version 7.15.1 — 2026-07-12

• Fix: in the HTML report with show_contexts enabled, a context label containing </script> (for example a parametrized pytest node id) could close the inline <script> element in a file page early, injecting markup. Context labels are now fully escaped. Thanks, Rajath Mohare.
• A number of performance improvements thanks to Paul Kehrer, in pull requests 2213, 2214, 2215, 2216, 2218, 2220, and 2221.

➡️  PyPI page: coverage 7.15.1. :arrow_right:  To install: python3 -m pip install coverage==7.15.1

7.15.0

Version 7.15.0 — 2026-07-02

• Since 7.14.0, reporting commands implicitly combine parallel data files. Now those commands have a new option --keep-combined to retain the data files after combining them instead of the default, which is to delete them. Finishes issue 2198.
• Fix: the LCOV report would incorrectly count excluded functions as uncovered, as described in issue 2205. This is now fixed thanks to Martin Kuntz Jacobsen.
• When running your program, coverage now correctly sets yourmodule.__spec__.loader as strongly recommended, avoiding the deprecation warning described in issue 2208. Thanks, A5rocks.
• Fix: with Python 3.10, running with the -I (isolated mode) option didn’t correctly omit the current directory from the module search path, as described in issue 2103. That is now fixed thanks to Ilia Sorokin.

➡️  PyPI page: coverage 7.15.0. :arrow_right:  To install: python3 -m pip install coverage==7.15.0

Sourced from coverage's changelog.

Version 7.15.4 — 2026-08-06

• Fix: in the HTML report, a source file name containing a double quote (legal on POSIX) wasn't escaped where it's dropped into the href of the index and prev/next links, so it could close the attribute early and inject markup. Page URLs are now escaped. Thanks, Rajath Mohare <pull 2227_>_.

• Fix: the LCOV report wrote file names and other fields into its line-oriented records without neutralizing control characters. A measured file whose name contained a newline (legal on POSIX) could forge extra records, inflating the coverage seen by tools that read the report. Control characters in a field are now replaced. Thanks, Rajath Mohare <pull 2226_>_.

• Wheels are now provided for Python 3.15.

.. _pull 2226: coveragepy/coveragepy#2226 .. _pull 2227: coveragepy/coveragepy#2227

.. _changes_7-15-3:

Version 7.15.3 — 2026-08-02

• Fix: the sysmon core is incompatible with dynamic contexts. Previously, the combination would be prevented when read from the coverage.py configuration. But using the context API as pytest-cov does, contexts would be silently dropped. Now a warning is issued, thanks to Jisang Han <pull 2234_>. Closes issue 2200.

• A performance improvement in the low-level line number bookkeeping when combining data files, thanks to Kevin Turcios <pull 2239_>_.

• Performance improvement in HTML reporting by reducing the number of times files have to be parsed, thanks to Kevin Turcios <pull 2240_>_.

.. _issue 2200: coveragepy/coveragepy#2200 .. _pull 2234: coveragepy/coveragepy#2234 .. _pull 2239: coveragepy/coveragepy#2239 .. _pull 2240: coveragepy/coveragepy#2240

.. _changes_7-15-2:

Version 7.15.2 — 2026-07-15

• Fix: one of the performance improvements in 7.15.1 (pull 2215) dramatically

... (truncated)

• 4c0e7ff docs: sample HTML for 7.15.4
• db4cc32 docs: prep for 7.15.4
• c33085c style: start gradual move to ruff 0.16
• 53a0fd5 fix: neutralize control characters in lcov report fields (#2226)
• b64d53d build: make 3.15 wheels
• 53792ab build: show the python version for kits
• f6b03c7 chore: make upgrade_one package=cibuildwheel
• d9b660a chore: make upgrade
• b128a31 docs: oops, move this entry to the correct place
• a7a2c15 fix: escape filename urls in html report href attributes (#2227)
• Additional commits viewable in compare view

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Packaging changes

• No longer provide mypyc-accelerated wheels for macOS x86_64 [mypyc-wheels #119](mypyc/mypy_mypyc-wheels#119)

Mypy 2.3

We've just uploaded mypy 2.3.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements 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.

The Upcoming Switch to the New Native Parser

We are planning to enable the new native parser (--native-parser) by default soon. We recommend that you test the native parser in your projects and report any issues in the mypy issue tracker.

Mypyc Free-threading Memory Safety

Free-threaded Python builds that don't have the GIL require additional synchronization primitives or lock-free algorithms to ensure memory safety when there are race conditions (for example, when a thread reads a list item while another thread writes the same list item concurrently). This release greatly improves memory safety of free threading.

List operations are now memory-safe on free threaded Python builds, even in the presence of race conditions. This has some performance cost. For list-heavy workloads, using librt.vecs.vec instead of list is often significantly faster, but note that vec is not (and likely won't be) fully memory safe, and the user is expected to avoid race conditions. The newly introduced librt.threading.Lock helps with this. Using variable-length tuples can also be more efficient than lists, since tuples are immutable and don't require expensive synchronization to ensure memory safety.

Instance attribute access is also (mostly) memory safe now on free-threaded builds in the presence of race conditions. We are planning to fix the remaining unsafe cases in a future release.

Full list of changes:

• Make attribute access memory safe on free-threaded builds (Jukka Lehtosalo, PR 21705)
• Fix unsafe borrowing of instance attributes with free-threading (Jukka Lehtosalo, PR 21688)
• Make list get/set item more memory safe on free-threaded builds (Jukka Lehtosalo, PR 21683)
• Don't borrow list items on free-threaded builds (Jukka Lehtosalo, PR 21679)
• Make multiple assignment from list memory-safe on free-threaded builds (Jukka Lehtosalo, PR 21684)

... (truncated)

• 8aabf84 Drop +dev from version
• 4d8ad2a Update changelog for 2.3 release (#21728)
• 2c21546 [mypyc] Update documentation of race conditions under free threading (#21726)
• a9f62a3 [mypyc] Make attribute access memory safe on free-threaded builds (#21705)
• 0faa413 Use PYODIDE environment variable for Emscripten cross-compilation detection...
• 3d75cdb [mypyc] Borrow final attributes more aggressively (#21702)
• 24c237d [mypyc] Improve documentation of Final (#21713)
• b5be217 [mypyc] Update free threading Python compatibility docs (#21711)
• cbcb51a Narrow for frozendict membership check (#21709)
• af2bc0f Sync typeshed (#21707)
• Additional commits viewable in compare view

Sourced from ruff's releases.

0.16.2

Release Notes

Released on 2026-08-06.

Bug fixes

• [flake8-pyi] Avoid false positives on singledispatch functions (PYI041) (#27335)

Server

• Register formatting capabilities dynamically to exclude TOML files (#27332)

Contributors

• @​MeGaGiGaGon
• @​charliermarsh
• @​epage
• @​sharkdp
• @​ntBre

Install ruff 0.16.2

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.2/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.2/ruff-installer.ps1 | iex"

Download ruff 0.16.2

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-riscv64gc-unknown-linux-gnu.tar.gz	RISCV Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum

... (truncated)

Sourced from ruff's changelog.

0.16.2

Released on 2026-08-06.

Bug fixes

• [flake8-pyi] Avoid false positives on singledispatch functions (PYI041) (#27335)

Server

• Register formatting capabilities dynamically to exclude TOML files (#27332)

Contributors

• @​MeGaGiGaGon
• @​charliermarsh
• @​epage
• @​sharkdp
• @​ntBre

0.16.1

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

... (truncated)

• 5b48a04 Bump 0.16.2 (#27555)
• 1b9e5fc Update Swatinem/rust-cache action to v2.9.2 (#27568)
• c4e86fc [ty] Add helper extension methods for half-range and equality constraints (#2...
• 17a00de [ty] Reuse primer commands in memory reports (#27553)
• 6ea296b [ty] Normalize type labels in structured docstrings (#26923)
• 2fc445f [ty] Diagnose invalid getattr calls (#27502)
• 22c7823 [ty] Enable (but downrank) auto-import completion suggestions from stub-only ...
• 05160d5 [ty] Diagnose invalid descriptor __get__ calls (#27400)
• baea3d0 [ty] Expose strict analysis options in the playground (#27543)
• c88946e [ty] Bump ecosystem-analyzer for strict project settings (#27542)
• Additional commits viewable in compare view