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Solana’s blockchain upgrade cuts transaction finality from 12.8 seconds to 150ms

The Cryptonomist·September 26, 2026·1 min read
Solana’s blockchain upgrade cuts transaction finality from 12.8 seconds to 150ms

Solana's developer network completed migration to Alpenglow, a new consensus protocol that cuts transaction finality from 12.8 seconds to 150 milliseconds. Co-founder Anatoly Yakovenko posted on September 25, 2026: "You're not ready for this." Engineers say Alpenglow could reshape network performance.

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