Not sure.
In many KR videos people still use this. Maybe not the only good heal build, but it should be still fine.
Paladin can be used now,too, instead of Oracle it seems, because it has damage boost and damage reduction, but aside of that there is no way to remove Diev or Priest from the generic healer build (unless your team does not die, then you might want to consider Pardoner or Plague Doctor instead of Priest)