Hiya -- that time in the expansion again!
Patch 9.1 arrives soon, with the new raid, Sanctum of Domination, arriving the first full week of July - do you have the progression widget ready to go? I'm guessing the raid boss kill tracker addon will need some work too ;-) Fingers crossed those yells work properly for this raid.
I've added the new raid to the progression widget and CTRaidTracker.
I'm really unsure how tracking Kel'Thuzad will work. From all the video I've seen, he dies three times. I might have to do some death counting or something. Will keep an eye out. The other bosses seem plenty straight forward.