According to a post by Bornakk several hotfixes have been applied recently and they are listed below.

• The Faction Champions encounter in the normal 10-player and normal 25-player Trial of the Crusader instances have had a number of spells and abilities altered which should result in less overall damage.
• The Anub'arak encounter has been changed on all difficulties. Anub’arak now attacks faster, the Nerubian Burrowers should hit a little harder, and their Expose Weakness ability now caps at 9 stacks.
• Some season 7 arena weapons will now have a socket.
• Threat of Thassarian will now properly halve the damage of Rune Strike for the off-hand strike.
• Soulstone Resurrection now fades upon entering raid combat if the character who cast it is not present.
• The Idle/Inactive debuff is now cleared upon round switches in Strand of the Ancients.
• The Mistress of Pain will now target more accurately in the 25 man Heroic Jaraxxus encounter.
• The damage of Hunter’s Volley ability has been increased.

You can check out the original post on the forums here.