Solana Targets October 2026 for Alpenglow Consensus Upgrade
Solana targets October 2026 for Alpenglow mainnet rollout Solana Foundation’s Agave 4.2 guidance says the Alpenglow consensus code is already included for testing, but it will not go live on mainnet in 4.2. The Foundation points to Agave 4.3 for activation, targeted for October 2026, with Alpenglow aiming to cut finality to about 150 milliseconds from roughly 12.8 seconds by replacing TowerBFT.