From the actual patch notes. Brigand Corrected a bug that prevented Band of Thugs VI from benefiting from level 111+ damage curves. Coercer Corrected a bug that prevented Puppetmaster V from benefiting from level 111+ damage curves. Conjurer Corrected a bug that prevented Roaring Flames VIII from benefiting from level 111+ damage curves. Corrected a bug that prevented Aqueous Swarm IX from benefiting from level 111+ damage curves. Corrected a bug that prevented Communion V from benefiting from level 111+ damage curves. Necromancer Corrected a bug that prevented Undead Horde VI from benefiting from level 111+ damage curves. Fixed a size scaling issue with the of the Undead Knight (Master). Updated the appearance of Undead Knight V (Master) so that it is no longer a duplicate of Undead Knight (Master). Updated the appearance of Undead Knight VII (Apprentice) so that it is no longer a duplicate of Undead Knight (Master). It seems that all swarm pets from the different classes should be fixed. Instead of fixes for Blighted Horde and Awakened Grave necromancers will get appearence fixes for the tank pet.....
There was a bug report for blighted hoard, I posted on the bug forum asking - if its a misprint on the notes or if both spells needed updated or if the wrong one was "updated"