Scala 2.13.1 is primarily a bug fix release that fixes several regressions in 2.13.0.
- Revert
Stream.Cons
to the 2.12 encoding (#8354) - Don't rebuild
scala.Seq
to drop elems inunapplySeq
(#8340) - Blacken subtrees where necessary in
RedBlackTree.take
(#8287) Iterator#flatMap#hasNext
callsouter#hasNext
1 time, not 2-3 times (#8220)s.c.Map#values
returns a strictIterable
rather than aView
(#8195)Vector.from(ArraySeq)
copies elems rather than reusingunsafeArray
(#8194)