Previously, players who purchased a Battle Pass, such as those with the Ultimate version of Diablo 4: Vessel of Hatred, could choose to delay redeeming it for a future season.

Diablo 4 Season 9 also introduces an all-new Battle Pass Reliquary, a bunch of rewards, and more.

Broken boss fights aren't the only issue Diablo 4 players are contending with, as the game's new Reliquary battle pass has also drawn criticism for its poor design.

This could mean that Season 9 is the last time Diablo 4 sees such a significant post-launch increase in players, barring something like a free weekend on Steam or Battle.net.