The upgrade bots will probably nag us about this. We still have to wait for some libraries (scala-xml at least) before we can upgrade to this, but we should plan for the right time.
Perhaps we just wait for 2.12.17 which is planned for within a few months due to a regression that was discovered? See 2.12.16 release notes https://github.com/scala/scala/releases/tag/v2.12.16 See 2.12.17 planning thread https://contributors.scala-lang.org/t/scala-2-12-17-release-planning/5805
