Updated patch notes released after the recent Developer Update highlight an interesting change that may have flown under the radar – the player gold cap has been massively increased from 9 trillion to 99 trillion!
Season 4 Patch Notes 1.4.0
Blizzard
Diablo IV Patch Notes – May 2, 2024:
The Gold cap has been increased from 9 trillion to 99 trillion.
This is likely a direct response to the wealthiest players using Gold to buy and sell Boss Summoning Materials in Season 3.