The biggest consensus overhaul in Solana history is officially live for testing

TechShareShare this articleCopy linkX iconX (Twitter)LinkedInFacebookEmailThe biggest consensus overhaul in Solana history is officially live for testingThe upgrade, known as Alpenglow, is live on a community test cluster, said Solana core developer Anza. By Margaux Nijkerk|Edited by Sheldon Reback May 11, 2026, 2:18 p.m. 2 min readMake preferred on What to know: Solana developer Anza said its proposed Alpenglow consensus overhaul is live on a community test cluster, allowing validators to test transitioning from the blockchain's current Proof-of-History and TowerBFT system to a faster architecture ahead of a potential mainnet rollout. The milestone suggests validators can successfully perform an “Alpenswitch,” moving to the new mechanism in a live environment.Solana co-founder Anatoly Yakovenko recently said Alpenglow could reach mainnet as soon as next quarter.Solana developer Anza said Monday that Alpenglow, the network’s biggest proposed consensus overhaul to date, is live on a community test cluster, marking a major step toward a potential mainnet rollout.The update means validator operators can now test software designed to move Solana from its current consensus system, which combines Proof-of-Stake with TowerBFT and Proof-of-History, toward a new architecture intended to dramatically reduce finality times and improve network responsiveness.“Alpenglow is live on the community test cluster,” Anza wrote on X. “The biggest consensus change in Solana’s history, now running on validator infrastructure ahead of mainnet.”Today, Solana relies on Proof-of-History, a cryptographic clock that timestamps transactions, alongside TowerBFT, a voting mechanism validators use to agree on the state of the blockchain. While the design has helped Solana achieve high throughput and low fees, some have pointed to outages and network instability during periods of heavy demand.Alpenglow proposes replacing major portions of that system with a redesigned framework centered around ne…

The biggest consensus overhaul in Solana history is officially live for testing

Coins in this story

Related stories

Banking groups escalate fight over stablecoin yield ahead of Senate vote

Corpay taps BVNK to bring stablecoin wallets to corporate payments

Strategy Resumes Bitcoin Buys as Saylor Shifts Focus to 'Never Be a Net Seller'