I have a new version of Stacks just about ready, but could use some extra help beta testing.
Warning: This is a beta, so it may have some serious bugs. We've been hard at work on some deep, dark, image storage issues -- this means that file corruption is not out of the question. Please please please ensure that Time Machine is working smoothly before trying out this beta. Thanx!
Release Notes: http://j.mp/I4fmtR
If you run into any trouble you can post here or send email to support at yourhead dot com. If it's something quick, just tweet to @isaiah
If you do run into a crash, please email crash reports, console logs, and other details to the support email address.