Solana prepares Alpenglow for October 21: what’s changing and what’s still pending
On October 13, 2026, Anza announced the planned migration to Alpenglow on the Solana mainnet for October 21. The Solana Foundation guide places activation in epoch 1064; when the sources were checked, it was still listed as not activated.
The goal is to achieve finality in about 150 milliseconds under normal conditions. This is a design target, not a result already measured on the mainnet or a guarantee that every user will experience that wait. It is also not the time between blocks.
The first phase introduces Votor: validators exchange votes directly and bundle them into certificates, instead of sending them as transactions. Program execution does not change. Rotor, another phase focused on distributing block data, is planned for later, with no date set.
One detail to keep in mind when reading the metrics: when votes are removed from blocks, transaction-per-second counts that previously included them may fall. A drop caused by this change in accounting would not demonstrate lower user activity; equivalent metrics will need to be compared.
The migration requires software updates and changes to services that read data from the network. Readiness and operational stability are aspects to monitor; the planned schedule does not replace verifying that activation has actually occurred.
Market perspective: faster finality could benefit payments and applications, but it does not guarantee demand for SOL or a higher price. On Binance, at 05:27 UTC on October 14, SOL was trading at 107.58 USDT (−0.775% in 24 hours) and BTC at 83,606.06 USDT (−0.204%). These are contextual figures, not a reaction attributed to the announcement.
Sources: Anza, Solana Foundation, and public Binance data.
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Educational Content. Not financial advice.
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