In Gen 4, many moves had their category changed from Physical to Special or from Special to Physical because of the Physical/Special split causing them to no longer by sorted by type.
Seeing Dark Void change from a status to a special move in Z-A made me wonder if any other moves have had their move categories changed after moves had already been updated to reflect the split (i.e., Gen 5 or later). Dark void is still an interesting case cause I think it's the only move thats changed from a status to an attack at the top of my head
Generation 6 towards Generation 7
Water Shuriken (Physical ---> Special)
Generation 8 towards 9
Double Hit ( Status ---> Physical) Spikes (Physical ---> Status) Stealth Rock (Physical ---> Status)
BDSP to LA
Double Hit ( Physical ---> Status ) Spikes (Status---> Physical) Stealth Rock (Status ---> Physcial)
Changes made in Legends: Z-A
Dark Void (Status---> Special)
Sources:
https://m.bulbapedia.bulbagarden.net/wiki/List_of_modified_moves https://www.serebii.net/attackdex-sv/darkvoid.shtml