Solana has activated Alpenglow, its largest network change since 2020, introducing a new validator voting system designed to make transactions final in about 150 milliseconds under normal conditions. The upgrade is intended to reduce the time users wait before payments, deposits and trades are considered fully settled, while leaving wallets, fees and applications unchanged.
A new approach to network finality
According to CoinDesk, Solana switched on Alpenglow on Wednesday. The upgrade changes how validators—computers that check transactions and agree on the network’s records—communicate their approval of new blocks.
Under Solana’s previous system, validator votes were recorded as transactions on the blockchain. Approvals accumulated over multiple successive blocks before the network reached finality. Finality is the point at which an application can treat a transaction as locked in and settled, rather than merely accepted provisionally.
Alpenglow allows validators to send votes directly to one another and combine those approvals into certificates. This is designed to let a block become final after one or two voting rounds, rather than requiring the previous process to run across several blocks. Solana is targeting finality in roughly 150 milliseconds, compared with waits of several seconds under the former system.
The transition itself took about 900 milliseconds, according to the Solana Foundation. Votes from 446 of the network’s 654 participating validators certified the block used to begin the changeover. That figure describes the handover between the two voting systems, rather than the target time for ordinary transactions.
The 150-millisecond figure is a target under normal network conditions, not a guarantee that every transaction will reach finality in exactly that time. The speed visible to users can also depend on the service processing the payment. Anza, the company behind Solana’s Agave software, said some computers receive finality information later than validators that participate directly in voting.
What changes for users and applications
Many Solana applications already displayed transactions as confirmed before the network had completely finalized them. That made payments appear quick, but users and businesses could still face an additional wait before receiving stronger assurance that a transaction would remain settled.
Alpenglow is designed to shorten that remaining interval. For a service handling a payment, faster finality could make it easier to release funds or goods shortly after receiving them.
Examples include:
- An exchange could credit a customer’s deposit sooner, allowing the funds to be used for trading.
- A shop accepting a stablecoin payment could confirm the transaction without asking the customer to wait for a longer settlement process.
These examples describe potential uses of the upgrade rather than guaranteed changes at every service. The way an application presents a payment will still depend on the company operating it and the software used to process the transaction.
For ordinary users, the practical handover is intended to be relatively simple. Existing wallets can continue to be used, and the upgrade does not change transaction fees or the way applications run. The main alteration is inside the network’s consensus process: validator approvals are communicated and assembled differently so that finality can be reached more quickly.
Why network dashboards may show fewer transactions
Alpenglow also changes how some network activity will appear in public statistics. Because validator votes are no longer recorded as blockchain transactions, dashboards that counted those votes may show lower transaction totals after the upgrade.
A visible decline in a chart would not necessarily mean that users had stopped making payments or trades. The number could instead reflect the removal of validator votes from the transaction count. Comparisons between activity before and after Alpenglow therefore need to distinguish user transactions from the votes that previously occupied space in blocks.
This distinction matters because headline transaction figures can combine different types of activity. A dashboard may report fewer total transactions even while user payments and trades continue at similar levels.
Moneyiar market picture
Moneyiar data at 23:04 on October 22, 2026, showed Solana’s SOL trading at $103.2062853817. The token was down 3.82% over 24 hours and 2.21% over seven days.
Other assets in the Moneyiar data were also lower: Celestia’s TIA was priced at $0.5559391085, down 8.51% over 24 hours and 6.05% over seven days, while Walrus’s WAL stood at $0.0378934174, down 3.06% over 24 hours and 25.09% over seven days. DEAPcoin’s DEP was $0.0009897724, down 0.07% over 24 hours and 0.42% over seven days; its quoted timestamp was August 20, 2026, at 21:13.
