[Solana Alpenglow Upgrade Goes Live on Devnet and Testnet, Aiming to Reduce Final Confirmation to 150 Milliseconds] According to CoinDesk, Solana's consensus upgrade, Alpenglow, was successfully switched to Testnet and Devnet on September 24 and 25, respectively. It is now running on two major public test networks, allowing application teams to test compatibility before launching on the mainnet. Alpenglow aims to reduce final confirmation time from approximately 12.8 seconds to around 150 milliseconds by enabling validators to exchange votes directly instead of writing votes as transactions into blocks, allowing consensus to be completed within one to two rounds of voting. The Solana Foundation has noted that after the upgrade, transaction statistics involving validator votes may decrease, but user payments and transaction volumes may not necessarily be affected. Applications that simply send transactions or read account balances do not require migration. The 150-millisecond target is a simulation goal and has not yet been verified in a real mainnet environment. Wallet processing and exchange deposit confirmations may still result in increased waiting times.