Sourced from coverage's changelog.

Version 7.9.0 — 2025-06-11

• Added a [run] core configuration setting to specify the measurement core, which was previously only available through the COVERAGE_CORE environment variable. Finishes issue 1746_.

• Fixed incorrect rendering of f-strings with doubled braces, closing issue 1980_.

• If the C tracer core can't be imported, a warning ("no-ctracer") is issued with the reason.

• The C tracer core extension module now conforms to PEP 489, closing issue 1977. Thanks, Adam Turner <pull 1978_>_.

• Fixed a "ValueError: min() arg is an empty sequence" error caused by strange empty modules, found by oss-fuzz_.

.. _issue 1746: nedbat/coveragepy#1746 .. _issue 1977: nedbat/coveragepy#1977 .. _pull 1978: nedbat/coveragepy#1978 .. _issue 1980: nedbat/coveragepy#1980 .. _PEP 489: https://peps.python.org/pep-0489 .. _oss-fuzz: https://google.github.io/oss-fuzz/

.. _changes_7-8-2:

• 452d86f docs: sample HTML for 7.9.0
• a670927 docs: prep for 7.9.0
• 3b0cb87 build: windows 3.14 is fixed
• bc8602d fix: issue a warning if the C tracer can't be imported
• d81a5f8 fix: prevent ValueError for bizarre empty modules
• 9f94c87 fix: properly render double braces in f-strings. #1980
• 1958c3f refactor: no need for a version check since we run mypy on late python now
• 8891312 docs: updated cog checksums
• 3ae5add chore: make upgrade (cog 3.5.0)
• 52407da refactor: mypy==1.16.0 had some complaints
• Additional commits viewable in compare view

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