End-of-dungeon and Great Vault rewards will scale up to Keystone Level 18 (up from 15) in Dragonflight Season 1.
Item Level of Loot from the Weekly Chest and Mythic+ in Dragonflight Season 1
Loot scales up to +18 (was +15). All raid difficulties will be available at the same time, so loot from the weekly chest will be uncapped.
Difficulty Level
End of Run Item Level
Great Vault Item Level
Mythic
372
None
Mythic +2
376
382
Mythic +3
376
382
Mythic +4
379
385
Mythic +5
379
385
Mythic +6
382
389
Mythic +7
382
389
Mythic +8
385
392
Mythic +9
385
392
Mythic +10
389
395
Mythic +11
389
395
Mythic +12
392
398
Mythic +13
392
402
Mythic +14
395
405
Mythic +15
395
408
Mythic +16
398
411
Mythic +17
398
415
Mythic +18
402
418