Solana’s highly anticipated Alpenglow upgrade appears destined to pass, with more than 99% of votes in favor of cutting transaction finality down to near-instant speeds — rivaling that of Google searches. The proposal, which aims to shorten finality from the current 12.8 seconds to around 150 milliseconds, is moving forward with only two days of voting left.
First introduced in May by Anza — a spin-out from Solana Labs — the Alpenglow consensus design has been hailed as the most significant technical milestone in Solana’s history. If implemented, it would mark nearly a 100-fold improvement in speed, setting a new bar for blockchain performance and matching the responsiveness of core internet infrastructure.
The governance process began on Aug. 21, and so far, 99.6% of participants have backed the proposal, according to Staking Facilities data. With the quorum of 33% already met, and voting due to end at epoch 842 (expected Tuesday at 1 p.m. UTC, per Solanabeach.io), the measure is now virtually guaranteed to pass.
Voting breakdown for the Alpenglow consensus protocol proposal: Source: Staking Facilities
Should it succeed, Alpenglow would reinforce Solana’s position as the fastest layer-1 network, eclipsing Sui’s ~400 ms finality and even edging out the speed of Google searches, which typically take about 200 ms. Speed has long been a core differentiator for competing blockchains: while Bitcoin and Ethereum take around 10–13 seconds to include a transaction, Ethereum only achieves finality after approximately 12 minutes.
Anza researchers Quentin Kniep, Kobi Sliwinski, and Roger Wattenhofer, who authored the original white paper, noted that Alpenglow’s breakthrough could unlock new possibilities for Solana beyond its current focus on payments, trading, and gaming.
“Reaching 150ms median latency doesn’t just make Solana fast — it puts it on par with Web2 systems, opening the door for real-time applications that were never before practical on blockchain.”
The upgrade introduces two central innovations: Votor, a new voting mechanism to finalize blocks in one or two rounds depending on validator participation, replacing TowerBFT; and Rotor, a data-sharing protocol to replace proof-of-history, designed to accelerate how quickly nodes reach agreement across the network.
Still, the white paper stressed that Alpenglow will not eliminate Solana’s history of outages. Currently, Solana relies on a single production-ready client, Agave — making it vulnerable to bugs or exploits. Relief is expected later this year with the launch of Firedancer, an independent validator client that will add much-needed client diversity and bolster network resilience.