An updated file should have Ultimate difficulty unlocked and all major Riftgates discovered.
Immediately take on Nemesis bosses, Ultimate Crucible, or Shattered Realms. grim dawn lvl 100 save file updated
For those interested, I'll be sharing my level 100 save file on the Grim Dawn forums and via a link on my website. This will allow others to download and inspect my build, potentially even using it as a starting point for their own characters. An updated file should have Ultimate difficulty unlocked