A big surprise today is that we have new FAQs for the 40k rulebook and for several armies. Army updates include Chaos Daemons, Dark Eldar, Imperial Knights, Space Wolves, and Tau. Both the Black Legion and Escalation were updated as well.
http://www.blacklibrary.com/faqs-and-errata.htmlWarhammer 40k
Warhammer 40000: Rulebook - Updated 22nd October 2014
Warhammer 40,000 Codexes
Chaos Daemons - Updated 22nd October 2014
Dark Eldar - Updated 22nd October 2014
Imperial Knights - Updated 22nd October 2014
Space Wolves - Updated 22nd October 2014
Tau Empire - Updated 22nd October 2014
Supplements
Black Legion - Updated 22nd October 2014
Escalation - Updated 22nd October 2014
Warhammer Fantasy
Warhammer: Rulebook - Updated 22nd October 2014
Wood Elves - Updated 22nd October 2014
There seems to be a problem with at least the Dark Eldar Link, and BRB Errata is very minor. Of course I am just getting down to reading through the changes that are available.