huitseeker [1] filed a request to merge scala-devel [2] into scala_2.10 [3]: This package was there to ensure backward compatibility with the maintenance release of scala, something which scala_2.10 does better (conflicts with scala mainstream 2.11, up to date build) [1] https://aur.archlinux.org/account/huitseeker/ [2] https://aur.archlinux.org/pkgbase/scala-devel/ [3] https://aur.archlinux.org/pkgbase/scala_2.10/