- Scala Fix: https://github.com/typelevel/cats-effect/blob/d9285906a0b8f3c1b902549cae2781ebc4b90ee7/scalafix/README.md
- Migration Guide proposal (https://github.com/typelevel/cats-effect/pull/1687/files)
- Migration Guide hosted version since it's still in PR ( https://cats-effect-mig.netlify.app/cats-effect/docs/migration-guide)
- Tpolecat Ecosystem version table (https://gist.github.com/tpolecat/05d38226f0856d8fc02f0c560a76c69a)
- Http4s version table (https://http4s.org/versions/)
- Ecosystem upgrade thread (typelevel/cats-effect#1330)
- Natchez (https://github.com/tpolecat/natchez/tree/v0.1.1)
- Http4s (https://github.com/http4s/http4s/tree/v1.0.0-M21)
- Doobie (https://github.com/tpolecat/doobie/tree/v1.0.0-M1)
- Skunk (https://github.com/tpolecat/skunk/tree/v0.1.0)
- MUnit (ce-3 module) (https://github.com/typelevel/munit-cats-effect/tree/v1.0.2)
- FS2 (https://github.com/typelevel/fs2/tree/v3.0.1)
- Ciris (https://github.com/vlovgr/ciris/tree/v2.0.0-RC2)
- ...... This list goes on, but should cover most of your needs.
- 0.22 is still on cats-effect-2 and 1.0 is on cats-effect 3.