From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050909 Fedora/1.0.6-1.2.fc4 Firefox/1.0.6 Description of problem: yum cannot revert to the last stable system state. this can be very useful in cases like: Bug 168752 - xorg-x11-6.8.2-37.FC4.48.1 update causes regression in video hardware support. In these cases, it would be nice if yum had the capability to reverse the most recent applied changes and restore the last stable system state. yum has the last downloaded set of packages. presumably, yum also has the log for the last run transaction. therefore, it is conceivable that yum can be extended to have the capability to restore last stable system state by backing out the most frequent change applied. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: None Additional info:
yum isn't going to get into downgrading things as the dep chain result could end up having you revert critical security fixes.