9.1 Jayce Patch Note Buff? Nerf? Remake? Rollback?

Jayce

Q+E combo can now be buffered.

E - Acceleration Gate

BUFFERINGIf Jayce casts Acceleration Gate during Shock Blast's cast time, he'll now ignore movement commands until both abilities have been cast

Source : https://na.leagueoflegends.com/en/news/game-updates/patch/patch-91-notes