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Solana Alpenglow testnet: What does the 150ms finality upgrade change?

Solana has moved its Alpenglow consensus upgrade toward public testnet deployment as developers prepare to test a design intended to cut transaction finality from roughly 13 seconds to around 150 milliseconds. According to github, the testnet stage will let developers…

Solana has moved its Alpenglow consensus upgrade toward public testnet deployment as developers prepare to test a design intended to cut transaction finality from roughly 13 seconds to around 150 milliseconds. According to github, the testnet stage will let developers…

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Original publication date: Sep 23, 2026 · 3:18 AM

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