Alpenglow is a Solana consensus upgrade that aims to cut transaction finality to about 150 milliseconds, potentially making Solana one of the fastest layer-1 blockchains. The proposal has received over 99% support so far and is poised to pass after quorum was reached.
99%+ of votes cast support Alpenglow, with quorum reached
Alpenglow targets ~150 ms transaction finality using Votor and Rotor components
If implemented, Solana could match or exceed Web2 response times and outpace many layer-1s
Alpenglow Solana upgrade targets 150ms finality; vote support >99% and quorum met — read the latest on timing and technical changes.
What is Solana’s Alpenglow proposal?
Alpenglow is a consensus upgrade for Solana designed to reduce transaction finality from ~12.8 seconds to roughly 150 milliseconds. The upgrade combines a new voting/finality layer (Votor) and a new block propagation protocol (Rotor) to deliver near-instant finality and Web2-like responsiveness.
How fast is Alpenglow expected to make transactions?
The white paper and release notes project a median finality of ~150 ms, roughly a near-100x improvement versus current finality figures. Staking Facilities data shows over 99.6% of votes cast are in favor. Solana block-epoch timelines indicate voting closes at epoch 842, expected to complete on Tuesday at 13:00 UTC.
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Front-loaded, Alpenglow targets Web2-level responsiveness: a 150 ms median latency would let Solana compete with conventional internet services. That latency would place Solana ahead of many layer-1 blockchains, such as Sui (~400 ms finality), and potentially faster than typical Google search response times (~200 ms).
Votor replaces TowerBFT to process voting transactions and finalize blocks in a single round when 80% of stake participates, or two rounds at 60% responsiveness. Rotor replaces the multi-hop propagation (Turbine) with a single relayer layer to distribute blocks faster and more uniformly across validators.
Anza researchers Quentin Kniep, Kobi Sliwinski and Roger Wattenhofer said: “A median latency of 150 does not just mean that Solana is fast — it means Solana can compete with Web2 infrastructure in terms of responsiveness, potentially making blockchain technology viable for entirely new categories of applications that demand real-time performance.”
Voting began on Aug. 21 and has achieved the 33% quorum threshold. With more than 99% of cast votes in favor, the proposal is expected to pass if voter participation remains consistent. Voting is scheduled to close at epoch 842, projected to finish on Tuesday at 13:00 UTC. Voting tallies referenced are from Staking Facilities and on-chain governance data.
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Source: https://en.coinotag.com/solanas-alpenglow-proposal-could-pass-with-over-99-support-potentially-reducing-finality-to-150ms/