1/10: Scala 3 migration Tips and Tricks. A 🧵.
Important obvious: thoroughly read the migration guide and leverage scalafix for syntax updates. Will save you hours of manual work!
2/10: Don't rush to replace everything with new syntax! First make your codebase compile with the old syntax but using the Scala 3 compiler. The new syntax has its own rules and can cause confusing errors if you're unfamiliar, especially when mixed with the old syntax.