Because of https://github.com/scala/scala-dev/issues/480 , we will build and release Scala 2.12.6 soon. The target date on the 2.12.6 milestone on GitHub is now April 9. (As always, these dates are targets and are not set in stone.)
Nearly all issues and pull requests that were targeted for 2.12.6 are now pushed forward to 2.12.7. (We’ll be extremely conservative about accepting anything for 2.12.6.)
2.12.7 is tentatively planned for August 2018.
Seth Tisue / Scala team / Lightbend, Inc.