Cats Effect Files

This is the sixty-first release in the Cats Effect 3.x lineage. It is fully binary compatible with every 3.x release and fully source-compatible with the 3.7.x lineage.

What's Changed

Enhancements

• Rewrote parTraverseN and parTraverseN_ for better performance by @djspiewak in https://github.com/typelevel/cats-effect/pull/4451
• Derive MaxEvents from PollingTicks in Epoll and Kqueue polling systems by @antoniojimeneznieto in https://github.com/typelevel/cats-effect/pull/4603
• O(1) cancelation for Semaphore and MiniSemaphore by @stasimus in https://github.com/typelevel/cats-effect/pull/4648

Bug Fixes

• Fix memory leak in Supervisor internal state by @durban in https://github.com/typelevel/cats-effect/pull/4500
• Fix scaladoc links in IOApp by @durban in https://github.com/typelevel/cats-effect/pull/4562
• Workaround [#4524] by synchronizing tasks set by @armanbilge in https://github.com/typelevel/cats-effect/pull/4569
• Fix issue [#4489] by @durban in https://github.com/typelevel/cats-effect/pull/4625
• Fix Ticker @implicitNotFound message to reference testkit-available API by @mvanhorn in https://github.com/typelevel/cats-effect/pull/4592
• Fix ownsPoller and ownsTimers for blocking threads by @durban in https://github.com/typelevel/cats-effect/pull/4631

Documentation

• Update weaver with typelevel org by @lenguyenthanh in https://github.com/typelevel/cats-effect/pull/4476
• Add FAQ on imports by @mtomko in https://github.com/typelevel/cats-effect/pull/4534
• Mention system property in docs that enable blocked thread detection by @rochala in https://github.com/typelevel/cats-effect/pull/4582
• Fix MonadCancel scaladoc by @reardonj in https://github.com/typelevel/cats-effect/pull/4629

Behind the Scenes

• Switch to windows-2022 runner tag by @samspills in https://github.com/typelevel/cats-effect/pull/4470
• Actually run JVM IOApp tests in CI by @armanbilge in https://github.com/typelevel/cats-effect/pull/4518
• Updated site script for scastie API changes by @djspiewak in https://github.com/typelevel/cats-effect/pull/4567
• Removed CirrusCI by @djspiewak in https://github.com/typelevel/cats-effect/pull/4660

New Contributors

• @rochala made their first contribution in https://github.com/typelevel/cats-effect/pull/4582
• @mvanhorn made their first contribution in https://github.com/typelevel/cats-effect/pull/4592
• @stasimus made their first contribution in https://github.com/typelevel/cats-effect/pull/4648

Full Changelog: https://github.com/typelevel/cats-effect/compare/v3.7.0...v3.7.1