Just a brief brainlightning...

1) enable keeppackges for all repos (needs a lot of space) 2) create a snapshot (hardlink/copy) of /var/cache/zypp/packages at any point of time 3) use 'zypper dup --repo anysnapshot' with solver.upgradeRemoveDroppedPackages = true to install (downgrade/upgrade) from that snapshot and remove any others

Could this be an acceptable solution? It does not roll back configuration and other stuff, but such type of rollback is also desired.

https://bugzilla.novell.com/show_bug.cgi?id=506701