https://bugzilla.redhat.com/show_bug.cgi?id=1287466
--- Comment #1 from Mikolaj Izdebski mizdebsk@redhat.com --- Explanation why I didn't package the latest version: Zinc is adapter for SBT incremental compiler and as such it requires a strict version of SBT. In fedora we have an old version of SBT (0.13.1) which corresponds to Zinc 0.3.1.