Not really a bug, but the ranger perks in this (//%22http://www.efupw.com/forums/showthread.php?p=354470%22) thread are inconsistent with the ones in this (//%22http://www.efupw.com/forums/showthread.php?t=53869%22) thread.
The first is an announcement thread when they were first published. The second is the up to date thread.
Use the second to know what the perks are. The first is not going to be updated.