I have not run any content today yet, I'm still at work. But upon reading some of the changes today I see this one:
8.0:
Hydrocore
Item Level 110
Binds when picked up
"This potent reagent can be obtained deep within the dungeons of Kul Tiras and Zandalar."
8.1:
Hydrocore
Item Level 110
Binds when picked up
"This potent reagent can be obtained deep within the Heroic and Mythic dungeons of Kul Tiras and Zandalar."
Now I have to ask, has anyone run Heroics today, and seen Hydrocores dropping from endbosses? I have been trying to get a supply of this stuff, and I honestly would just rather run random heroics... looking for Mythics is depressingly slow.