Phoronix: Fedora Being Talked About For "Software Collections"

To adjust the rate at which how fast software updates are forced onto users, some Fedora and Red Hat developers have made a "Software Collections" proposal. The purpose of Software Collections is to allow users to install a package and choose between different versions of RPM-packaged software in parallel at run-time...

http://www.phoronix.com/vr.php?view=MTI0NDQ