0.4.0

Thanks to all the external contributors of this release: @EPronovost, @marcelocenerine, @nicolasstucki, @odd, @olafurpg, @smarter, @xavier-fernandez!

This release is built for Scala 2.12.3 and 2.13.0-M2, and for Dotty 0.3.0-RC1.

New operations

• #137 filterKeys, keys, keySet, keysIterator, mapValues, values, valuesIterator (on Map)
• #174 toIterable (on IterableOps) and toSeq (on SeqOps)
• #180 distinct (on Seq)
• #184 :++ (on Seq)
• #185 patch (on immutable.Seq)
• #188 iterate, range (on IterableFactory) and fill, tabulate (on SeqFactory)
• #189 +: and :+ extractors (on Seq)
• #200 from, continually (on LazyList companion)

New collections

• #204 TrieMap

Optimizations

• #200 filterNot
• #216 immutable.Set and immutable.Map of small sizes

Other changes

• #193 Rename benchmarks to better reflect the operations measured
• #200 Port JUnit tests from scala/scala
• #209 Add a scalafix rewrite to migrate a code base from the standard collection to the strawman
• #212 Fix incorrect benchmark charts
• #215 Replace call to size with knownSize in bounds check in Patched to not exhausts iterator prematurely

Changelist: 0.3.0...0.4.0