If you have enabled git information in the shell prompt (like branch name, working tree status, etc.) , an upgrade to F18 breaks this functionality. What’s worse, __git_ps1 (a shell function) isn’t found, and a yum plugin goes looking for a matching package name to install, making running any command on the shell *very* slow.
Avi Kivity announced he is stepping down as (co-)maintainer of the KVM Project at the recently-concluded KVM Forum 2012 in Barcelona, Spain. Avi wrote the initial implementation of the KVM code back at Qumranet, and has been maintaining the KVM-related kernel and qemu code for about 7 years now.