one thing i do find annoying with the crimson drivers i have it set to automatically download the new drivers and what not and whenver i go into amd gaming evolved or in crimson to check for an update it says its up to date when its not is this a bug or not
It is up to date, crimson doesn't take in to account Beta drivers I believe.
EDIT : Oups sorry didn't even notice 15.12 had come out, my bad just woke up.So yes it probably is a bug.
EDIT 2 : It looks like it was a known bug, here in the crimson 15.12 resolved issues :
 Radeon Settings driver update check is not available for minor driver versions