You can now unspecialize in tailoring and alchemy, and then select a new specialization. This is a repeatable choice, but costs gold each time.
The Tailoring recipe Ebon Shadowbag no longer drops from Spirit Walkers.
Profession recipes that had 24 hour or longer cooldowns, have had their cooldowns reduced by 1 hour.
Golden Spellthread and Runic Spellthread have been slightly improved.
Imbued Netherweave Tunic and Robe recipes are vendor purchased so are now white instead of blue.