
Solana has begun testing Alpenglow, an upgrade designed to reduce the network’s transaction finality time from 12.8 seconds to about 150 milliseconds, CoinDesk reported. If implemented as described, the change would allow exchanges, bridges and merchants to treat payments as irreversible almost immediately. The testing marks a development for the Solana network and its native SOL asset, although the source material does not provide a deployment date or indicate that the upgrade is already active on the main network. Faster finality could be relevant to applications that depend on quick confirmation of transactions, including payments and transfers between networks. The reported target describes a potential reduction rather than a confirmed performance level, and no market-price impact was provided.