Solana Counts Down To Alpenglow Upgrade With Faster Finality In Focus

TL;DR: Solana is approaching its planned Alpenglow consensus upgrade, which targets transaction finality of roughly 150 milliseconds — a goal, not a guarantee of live-network performance. Solana’s next big technical change is scheduled for October 21. Alpenglow would replace the network’s existing consensus approach with a redesigned system intended to make transactions final far more quickly. The advertised target is about 150 milliseconds, compared with the multi-second finality associated with the current design. That’s a striking number, but it should be treated as an engineering objective. The real test comes when validators run the software under actual mainnet conditions. Alpenglow also changes the mechanics of voting.

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