Once you're actually running Rawhide, file any significant bugs
you
encounter just as usual, and if you run into any real showstoppers, you
can propose them as Fedora 21 blockers following the usual process
(
https://fedoraproject.org/wiki/QA:SOP_blocker_bug_process ) - the
blocker bug app has not yet been updated for F21 so you can't use that,
I have updated BBA to track F21. Should be working now:
https://qa.fedoraproject.org/blockerbugs/milestone/21/alpha/buglist
but all you have to do is mark the bug as blocking
"AlphaBlocker",
"BetaBlocker" or "FinalBlocker". If you see any unusual or
unexpected
changes but you're not sure if they're bugs, post about them here (on
test@), it's one of the purposes of the list!