Solana has scheduled its Alpenglow upgrade for October 21 to replace TowerBFT, the voting system it has used since its 2020 launch, aiming to make transactions irreversible in about 150 milliseconds, though actual performance depends on network conditions. Because validator votes will no longer be recorded as transactions in blocks, Solana's reported transaction count could fall sharply on activation day even if user activity stays the same. Validators must run Agave 4.3.0, while Firedancer and Frankendancer operators will need to switch software temporarily. Validator voting charges of roughly 1 SOL per epoch will be replaced by a flat admission fee of 0.8 SOL. The migration is scheduled for epoch 1064, around 15:00 UTC on October 21, and Solana will switch to Alpenglow about 18 minutes after the first 5,000 slots under the old system.
Summary written by Upside AI from the original article. Read the source for full details.
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Related tickers and likely impact
SOL/USDT
▲ Likely positiveSolana
Relevance: medium
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $61.0B |
| Close on 10/13/2026 | 106.83 |
| Change that session | +1.01% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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