Solana has just undergone the biggest overhaul in its history. The Alpenglow update, approved in September 2025 by 98.27% of validators, is now being deployed on the mainnet. The announced result: transaction finality reduced from 12.8 seconds to 100-150 milliseconds—an improvement of approximately 100x. If this promise is fully realized, Solana would enter the same speed category as traditional exchanges like the NYSE. Here is everything you need to know before trading SOL.
