The latest version of Scala is 2.12.1 and we currently have 2.11.8.

Build requirements have changed from apache-ant to sbt, though in attempting to update the package.yml file for that I found that sbt does not like running under fakeroot. It attempts to access some files under /root/.sbt/ before running, which causes it to crash with an IOException. Running ypkg as root succeeds, which seems to confirm that it is a file permissions issue.

I'm not sure where to go from here, so I leave the above note to whoever tries to update the package.