As usual, the Fedora community has planned a number of Test Days for the upcoming 18 release, including include a Virtualization Test Day on November 1st (this Thursday):
https://fedoraproject.org/wiki/Test_Day:2012-11-01_Virtualization
We are therefore calling all our community members to participate in the test day as much as possible. Specific information regarding testing Xen on Fedora can be found in this Wiki page:
http://wiki.xen.org/wiki/Fedora_Test_Days
For participating, or just if attending, be sure you hang out on IRC at #fedora-test-day (on Freenode) on Thursday !
Fedora 18 will be one of the first distros shipping Xen 4.2... So come and help us making sure it will work great for all users !!
Thanks and Regards, Dario