The Solana Foundation and software developer Anza scheduled the Alpenglow mainnet upgrade for October 21, 2026, targeted for epoch 1064 at approximately 15:00 UTC

From the articleAnza Sets Oct. 21 for Solana’s Alpenglow Mainnet UpgradeAlso in Solana targets 150-millisecond finality with Alpenglow upgrade on Oct. 21, SOL news: Solana sets Oct. 21 for Alpenglow upgrade targeting 150-millisecond finality