To be clear, release candidate 1 has been sunk. We'll post a new candidate after we chat at this weeks' meetup ( http://www.meetup.com/hbaseusergroup/calendar/10950511/). Its looking like there are a few more bug fixes that should go in, in particular HBASE-1738 and at least some kind of salve for HBASE-1750 and HBASE-1736. Meantime, please keep turning up the issues.
Thanks for your patience, The HBase Team