Solana will activate Alpenglow on mainnet on October 21 at around 15:00 UTC, replacing the consensus mechanism it has used since launch. Finality drops from about 12.8 seconds to a target of about 150 milliseconds, 85 times faster. Because validators will vote directly with each other instead of as on-chain transactions, Solana’s transaction count and TPS figures are expected to fall sharply even though real users and volume stay the same. The new design aims to keep finalizing with 20% of stake acting maliciously and another 20% offline, while the old system is at risk once more than about a third of stake turns hostile. This is only phase one of two, the second has no date, and Solana previously delayed a September 28 activation; meanwhile, crypto majors fell 3-5% after a hot CPI print, with BTC at 80.9k and over 900M liquidated.
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: low
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $61.0B |
| Close on 10/14/2026 | 104.29 |
| Change that session | -2.38% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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