# Solana's Alpenglow consensus rewrite reaches a second public test network

The upgrade targets settlement in about 150 milliseconds and now runs where application teams can test against it before the live chain switches over.

- Published: 2026-09-26T05:50:55.881Z
- Canonical: https://polylog.news/crypto/2026-09-26/solana-s-alpenglow-consensus-rewrite-reaches-a-second-public
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/tech/2026/09/26/solana-s-150-millisecond-settlement-upgrade-reaches-second-public-test-network)

Alpenglow, the rewrite of Solana's consensus mechanism, is now running on both of Solana's public test networks, giving application developers a place to verify their software before the change reaches the live chain. The target is settleme…

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