GM!
Morning Minute: Solana Is About To Get Faster
Alpenglow is coming next week, slashing Solana finality from 12.8 seconds to a target of about 150 milliseconds—some 85 times faster.
Tyler Warner
Publisher Decrypt
Oct 15, 2026 at 12:07 PM UTC · Updated vor 4 Tagen · 4 Min. Lesezeit

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→🏎️ Solana Cuts Finality From 12.8 Seconds to 150 Milliseconds
Next Wednesday, Solana rips out the engine and drops in a new one while the car is doing 70 on the highway.
On October 21, around 15:00 UTC, Solana activates Alpenglow on mainnet, retiring the consensus mechanism it has run on since launch. Finality drops from roughly 12.8 seconds to a target of about 150 milliseconds – 85 times faster. Anza, the core dev shop behind it, called it “18 months of work for a migration that happens in one slot.”
Finality is the moment a transaction stops being reversible, the point where you can hand over the goods knowing the payment can’t be clawed back. Solana has always felt instant, but there was a roughly 13-second window where a block could in theory still get dropped. Every exchange and payment processor has had to build around that window. Next week it closes.
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