This is the fifteenth major release in the Cats Effect 2.x lineage. It is fully binary compatible with all 2.x.y
releases.

This release brings stack safety bug fixes in long traverse and parTraverse chains for IO and Resource in
combination with the Kleisli monad transformer.

User-Facing Pull Requests

• #1990 – Add support for Scala 2.13.6 (@vasilmkd)
• #2016 – Add support for Scala 2.12.14 (@vasilmkd)
• #2053 – Update Scala.js to version 1.6.0 (@vasilmkd)
• #2112 – Add support for Scala 3.0.1 (@vasilmkd)
• #2157 – Fix stack safety in long traverse and parTraverse Kleisli chains for IO and Resource (@vasilmkd)

Special thanks to Vasil for doing literally everything.