Select what genuinely interests you. Your picks feed directly into our editorial planning. Solana is replacing its consensus today. The switch from TowerBFT to Alpenglow is set for October 21, at around 14:50 UTC according to the developer house Anza, which is around 16:50 German time. The Solana Foundation most recently projected the corresponding epoch start at about 15:00 UTC; an earlier estimate named 13:20 UTC. Expect a window of roughly two hours, then, not a button press to the minute. What changes, by contrast, can be stated precisely: the time to irreversibility of a payment falls from around 12.8 seconds to a target of 100 to 150 milliseconds.