Solana Consensus Upgrade Alpenglow to Launch on Mainnet on October 21

Chainthink

Release Time: 2026/10/13 15:37:44

SOL

$107.55-0.53%

Summary

Solana’s blockchain upgrade, Alpenglow, will go live on Mainnet-beta on October 21 at approximately 22:50. On-chain confirmation confirms the protocol replaces TowerBFT and removes Proof of History, reducing finality to 150 milliseconds. Voting shifts off-chain to free up block space. Anza developed the upgrade over 18 months, with testnet and devnet trials involving over 1,500 node simulations and a 25,000 SOL bug bounty.

ChainThink reports that, on October 13, Anza announced that Solana’s new consensus protocol, Alpenglow, is scheduled to launch on Mainnet-beta around October 21 at 22:50 UTC, with the migration to be completed within a single slot.

Alpenglow, developed by Anza over 18 months, will replace TowerBFT and eliminate the Proof of History (PoH) mechanism, reducing transaction finality time from several seconds to approximately 150 milliseconds;

Voting will move off-chain to free up block space for user transactions. The protocol has previously been migrated on testnet and devnet, and undergone simulation testing across 1,500 nodes, with over 25,000 SOL in bug bounties.

Source:Show original

Disclaimer: The information on this page may have been obtained from third parties and does not necessarily reflect the views or opinions of KuCoin. This content is provided for general informational purposes only, without any representation or warranty of any kind, nor shall it be construed as financial or investment advice. KuCoin shall not be liable for any errors or omissions, or for any outcomes resulting from the use of this information. Investments in digital assets can be risky. Please carefully evaluate the risks of a product and your risk tolerance based on your own financial circumstances. For more information, please refer to our Terms of Use and Risk Disclosure.