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

The upgrade, known arsenic Alpenglow, is unrecorded connected a assemblage trial cluster, said Solana halfway developer Anza.

May 11, 2026, 2:18 p.m. 2 min read

Solana developer Anza said Monday that Alpenglow, the network’s biggest proposed statement overhaul to date, is unrecorded connected a assemblage trial cluster, marking a large measurement toward a imaginable mainnet rollout.

The update means validator operators tin present trial bundle designed to determination Solana from its existent statement system, which combines Proof-of-Stake with TowerBFT and Proof-of-History, toward a caller architecture intended to dramatically trim finality times and amended web responsiveness.

“Alpenglow is unrecorded connected the assemblage trial cluster,” Anza wrote connected X. “The biggest statement alteration successful Solana’s history, present moving connected validator infrastructure up of mainnet.”

Today, Solana relies connected Proof-of-History, a cryptographic timepiece that timestamps transactions, alongside TowerBFT, a voting mechanics validators usage to hold connected the authorities of the blockchain. While the plan has helped Solana execute precocious throughput and debased fees, immoderate person pointed to outages and web instability during periods of dense demand.

Alpenglow proposes replacing large portions of that system with a redesigned model centered astir caller components. In elemental terms, the caller exemplary aims to fto validators pass and corroborate blocks faster and much efficiently, perchance cutting transaction finality from respective seconds to adjacent real-time speeds.

The commencement of the assemblage trial clump besides suggests that validator bundle tin successfully execute what developers are informally calling “Alpenswitch,” transitioning validator nodes from Solana’s existing process to Alpenglow successful a unrecorded web environment.

The trial milestone comes conscionable days aft Solana co-founder Anatoly Yakovenko said astatine Consensus Miami 2026 that Alpenglow could scope mainnet arsenic soon arsenic adjacent 4th if investigating continues smoothly.

Read more: Solana’s 'Alpenglow' upgrade could get adjacent quarter, co-founder Yakovenko says