Scala 2.13.0-M4 release notes (collections changes)

Under the covers — and sometimes above the covers — Scala is changing. These notes about Scala 2.13.0-M4 describe some of the changes coming to the Scala collections classes.

A few things not shown in the image are:

• The scala-xml library is no longer bundled with the release
• Procedure syntax (def m() { ... }) is deprecated
• View bound syntax (A <% B) is deprecated
• Assorted deprecated methods and classes have been removed

See the Scala 2.13.0-M4 release notes for more details.