Solana sets Oct. 21 for Alpenglow upgrade targeting 150-millisecond finality
The switch will replace Solana’s existing validator voting system, remove vote transactions from blocks and could sharply change headline transaction counts even if user activity stays flat.
Make preferred on
Share this article
Summary
- Solana has scheduled its Alpenglow upgrade for Oct. 21, targeting transaction finality in about 150 milliseconds, though actual performance will depend on network conditions.
- Alpenglow will replace TowerBFT and move validator votes off-chain, which could sharply reduce Solana’s reported transaction count without reflecting a decline in user activity.
- Validators must use Agave 4.3.0 for the migration, while Firedancer and Frankendancer operators will need to switch software temporarily.
