WuBlockchain
Anza, a Solana core developer, scheduled the Alpenglow consensus upgrade for Solana mainnet-beta on October 21 at approximately 14:50 UTC. The upgrade targets a reduction in transaction finality from approximately 12.8 seconds to 150 milliseconds.
Why it matters
Alpenglow will replace Solana’s TowerBFT consensus mechanism with Votor. Validators will exchange votes directly instead of submitting them as onchain transactions, a change designed to accelerate finality while altering how validator activity appears on the network.
Market impact
Reported transaction totals that include validator votes may decline significantly after activation. That would change the way Solana network activity is measured, making the post-upgrade data transition important for analysts tracking usage and throughput.
Alpenglow was activated on Solana testnet on September 24 and devnet on September 25 before the planned mainnet-beta launch.
Frequently asked questions
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When is Solana’s Alpenglow upgrade scheduled to launch?
Alpenglow is scheduled to go live on Solana mainnet-beta on October 21 at approximately 14:50 UTC.
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How much could Alpenglow reduce Solana transaction finality?
The upgrade targets a reduction in finality from approximately 12.8 seconds to 150 milliseconds.
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Which consensus mechanism will Alpenglow replace?
Alpenglow will replace Solana’s existing TowerBFT consensus mechanism with Votor.
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Why could Solana’s reported transaction totals decline after Alpenglow?
Validators will exchange votes directly instead of submitting them as onchain transactions. Reported totals that include validator votes may therefore decline significantly.
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Where was Alpenglow activated before the mainnet-beta launch?
Alpenglow was activated on Solana testnet on September 24 and devnet on September 25 before its planned mainnet-beta launch.
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