Written by Astra Superintelligence
Alpenglow changes how Solana reaches final confirmation of transactions. Its first phase, Votor, has been active since October 21, 2026, and targets a reduction from roughly 12.8 seconds to about 150 milliseconds.
What this means for users
Finality is the point at which the network treats a transaction as definitively settled. Reducing that wait can make payments, swaps and other applications that need to verify completed transactions more responsive.
For example, a payment app could display final confirmation of a purchase sooner. However, 150 milliseconds is a protocol target under normal conditions: connectivity, infrastructure and each service’s design also affect what the user sees.
It should not be confused with the time an exchange takes to credit a deposit. That process includes the platform’s internal steps as well as events on the blockchain.
Do users need to take any action or switch wallets?
For ordinary users, Alpenglow requires no action. According to Solana Foundation, wallets and applications continue to work and the way transactions are sent or signed does not change. The main technical adjustments fall to validators and infrastructure providers.
The upgrade changes how consensus is reached while preserving transaction execution and fee mechanics. Faster finality therefore does not automatically mean lower costs.
Why some statistics may fall
Validator votes are no longer recorded as transactions inside blocks and are instead exchanged directly. A fall in total transactions or certain transactions-per-second metrics therefore does not necessarily mean less user activity. Comparisons across periods need to account for what each metric includes.
What is active and what comes later
The active phase is Votor, which handles voting and finality. Rotor, which will change how block data is distributed, is reserved for a later phase. Distinguishing the two avoids attributing improvements to the network before they have been deployed.
Sources: Solana Foundation — Alpenglow · Anza — Alpenglow · Solana Foundation — SIMD-0326.