Solana Implements Alpenglow Upgrade to Boost Transaction Speed

Solana has deployed the Alpenglow upgrade, reducing transaction finality to 150 milliseconds and replacing the TowerBFT consensus mechanism with Votor.

October 21, 2026, 02:04 PM·0 views

Photo: Crypto Briefing

The Solana network has successfully deployed the Alpenglow upgrade, which went live on October 21, 2026, at 13:20 UTC. This technical update introduces the Votor consensus mechanism, replacing the previous TowerBFT system.

A primary outcome of the implementation is the reduction of transaction finality time from 12.8 seconds to 150 milliseconds. Additionally, the upgrade shifts validator votes to an off-chain process.

This change in vote processing may result in variations in reported transaction volume metrics. Market observers are currently monitoring the network to evaluate the long-term stability of these performance improvements.