The new hash check catches essentially all desync problems that VolumeVerifier can catch, so from the user's perspective, such problems will result in Dolphin refusing to start the game on netplay rather than actually getting a desync.
The new hash check catches essentially all desync problems that VolumeVerifier can catch, so from the user's perspective, such problems will result in Dolphin refusing to start the game on netplay rather than actually getting a desync.