Solana targets 150-millisecond finality with Alpenglow upgrade on Oct. 21

Solana is preparing to launch its Alpenglow upgrade on Oct. 21, which targets a dramatic reduction in transaction finality time to roughly 150 milliseconds. Faster finality would improve network efficiency and user experience, potentially strengthening trust in Solana and supporting long-term demand for SOL. Traders would watch the upgrade's rollout for execution risks, but a successful deployment could be a positive catalyst for the token.