Solanas Alpenglow upgrade reaches devnet with 150ms finality target
Solanas Alpenglow upgrade has reached its public developer network, letting application teams test a system designed to cut transaction finality from about 12.8 seconds to roughly 150 milliseconds. SummaryAlpenglow is active on Solanas devnet and testnet, while mainnet still uses the current consensus system.The upgrade replaces onchain validator vote transactions with direct votes that can finalize a block in one or two rounds.Applications that only send transactions and read balances need no migration, but block-data services must update their systems.Anza has announced no firm date for Alpenglows mainnet activation. According to the Solana Foundation‘s upgrade page, Alpenglow is now active on devnet and testnet but has not been activated on mainnet. Anza, which develops Solana’s core validator software, announced the devnet switch on Sept. 25, one day after testnet completed its transition. The two networks serve different parts of the rollout. Application teams can use devnet to check how their software behaves with tokens that have no real value, while testnet gives validators and infrastructure operators a place to test the network software under more demanding conditions. For developers, the new devnet stage means they can check applications against Alpenglow without waiting for the system to reach the blockchain that handles users‘ funds. Solana’s









