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Upgrading pytest-asyncio 0.26 to 1

Breaking0.26.0 → 1.4.1.post1Breaking1Platform3Deprecated1New12Changed8Fixed10Other7

Full comparisonBack to pytest-asyncio
BreakingUpgrade verdict

1 breaking change and 3 platform requirement changes.

In plain terms
  • The old event_loop fixture is gone, so tests or plugins that request it will fail.
  • The package now officially supports Python 3.15.
  • This version no longer works on Python 3.9, so users on that version must upgrade Python before upgrading the package.
  • The package can now be used, at least tentatively, on Python 3.14.
Must act 5 items need code or config changes

Python requirement changed in 1.3.0: >=3.9 → >=3.10.

What you must change

Breaking1
Removes the deprecated event_loop fixture.
event_loop
1.0.0GitHub ReleaseSummarizedView source
Platform3
Declares support for Python 3.15.
1.4.1GitHub ReleaseSummarizedView source
Removes support for Python 3.9.
1.3.0GitHub ReleaseSummarizedView source
Adds preliminary support for Python 3.14.
1.0.0GitHub ReleaseSummarizedView source

Deprecations to plan for

Deprecated1
Overriding the event_loop_policy fixture is deprecated; use the pytest_asyncio_loop_factories hook instead.
event_loop_policypytest_asyncio_loop_factories
1.4.0GitHub ReleaseSummarizedView source