GamesAction RpgDiabloDiablo 4Diablo 4’s new item upgrade is good news for more than just your Season 4 characters: “Things that were just ok in previous seasons are now insanely powerful"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. GamesAction RpgDiabloDiablo 4Diablo 4’s new item upgrade is good news for more than just your Season 4 characters: “Things that were just ok in previous seasons are now insanely powerful"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: Blizzard) Diablo 4 Season 4isn’t too far away, bringing with it a substantial overhaul to the game’s item system, which, according to the game’s lead producer, will make its mark on your old characters as well as your new ones. In an interview with …