Migrating to Scala 2.13

on YouTube ↗35m

" summary

Scala 2.13 ships a full collection redesign (M4 released on Maven Central) that makes Seq immutable by default, removes legacy compiler flags and replaces CanBuildFrom with BuiltFrom / Factory semantics, moves parallel collections to a separate module and drops scala-xml as a transitive dependency. Migration uses SBT and the scalafix-based migration rule newcollections plus the scala-collection-compat library for cross-building; recommended steps are enable deprecation warnings, fix deprecations on 2.12, run the scalafix rule, add explicit imports or to/unsafeWrapArray where needed.

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" chapters (12)

1. 0:00Start
2. 3:39Compiler Flags
3. 5:18Disable Automatic Ada Expansion of Zero Arc Methods
4. 5:49Modules
5. 6:05Parallel Collections
6. 6:36Scala Xml
7. 11:30Recap of the Goals of the Collection Redesign
8. 14:45Scala Collection Immutable Array Seek
9. 18:12Factory
10. 20:33Future Dot Sequence
11. 24:17Custom Collection Types
12. 31:42Custom Corrections

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