The recent change in xz compression settings caused md5 mismatch errors in rebuilding RPMs (since applydeltarpm doesn't know the difference between the old and new compression). This resulted in significant work for releng. To avoid this issue in the future, what about using different names and packages for the different compression types (i.e., xz1, xz2, etc.) so they can be installed simultaneously and identified properly? The xz packages are small, and using separate packages should hopefully mean little to no extra work for the maintainer. The same method could be used in the future for any new compression type that replaces xz.
http://lists.fedoraproject.org/pipermail/devel/2010-October/144651.html https://bugzilla.redhat.com/show_bug.cgi?id=644046 https://fedorahosted.org/rel-eng/ticket/4224 -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
