Loot can now be flagged as being covenant/class-specific, and some is; Blizzard is quiet about what counts, so we're going by wowhead comments here, expect further updates
Checkmark on the popup loot icon was missing if you had all the knowable loot
Stop an error when mousing over the loot icon on the popup for mobs with more than 3 items that'd have to be previewed
Sharing a link to chat could fail if you were in an area where the general channel couldn't be identified; it'll fall back properly to opening the chatbox now
Stop the map overlay from pinging multiple mobs at once if a vignette was visible when you first logged in
Apparently I missed migrating Cataclysm loot data to the new format a few releases back, so it wasn't properly showing mounts and pets