transaction

Solana blockchain has launched Alpenglow with goal of reducing transaction confirmation times to 150 milliseconds

On October 21, 2026, the Solana blockchain activated the Alpenglow update on its mainnet, which replaced the previous TowerBFT consensus mechanism and is designed to speed up the final confirmation of transactions. According to the Solana Foundation, the new technology reduces the target transaction finalization time to approximately 150 milliseconds, compared to 12.8 seconds in the previous model.