Unlike typical minor bug-fix patches, v1.08 was a that fundamentally changed mechanics, character balance, and system data. It is widely considered the definitive version of SFxT for competitive and serious play on PC.

The "red health" recovery speed was increased, punishing passive play and rewarding aggression.

While v1.08 doesn't officially add rollback netcode, the community continues to advocate for a modern re-release that includes it. How to Update

While Capcom never officially advertised it, dataminers found that v1.08 adjusted the input latency buffer for the PC version. It is not true rollback like GGPO, but the “delay-based” stutter was reduced significantly for sub-100ms ping matches.