Overview
- Mysticeti v2 moves transaction validation into the consensus path, removing a separate pre-consensus step to reduce redundant work and speed confirmations.
- A new Transaction Driver replaces the Quorum Driver by submitting each transaction to a single validator and batching signatures inside blocks to lower bandwidth and CPU use.
- Early rollout on Mysten Labs and partner-operated full nodes shows meaningful latency reductions, with benchmarks reporting up to 35% faster in Asia and 25% in Europe.
- The upgrade preserves Sui’s fast-path finality model and supports multi-round certification to maintain reliability under weaker network conditions.
- Mysten Labs plans further optimizations that target fewer message rounds per commit, more direct block streaming to full nodes, and fixes for object-level deadlock patterns.