Solana After Alpenglow: 202ms Observed Against a 150ms…
By Karthik Subramanian
AI summary of the source article
Solana completed its Alpenglow consensus upgrade on October 21, 2026, replacing the TowerBFT system. While targeting transaction finality of approximately 150 milliseconds compared to the previous 12.8 seconds, an early dashboard reading recorded 202 milliseconds.
Why it matters
Alpenglow is intended to improve settlement certainty for cryptocurrency exchanges, payment providers, decentralized trading platforms and other applications that depend on rapid transaction finalization.
Key facts
- Solana activated its Alpenglow consensus upgrade on October 21, 2026, replacing TowerBFT with the Votor protocol.
- The upgrade targets approximately 150ms finality versus the historical 12.8-second benchmark, with an initial observation recorded at 202ms.
- The transition genesis certificate was confirmed with votes from 446 of Solana's 654 validators.
Source excerpt · FinanceFeeds
Solana completed its Alpenglow consensus upgrade on October 21, 2026, replacing the TowerBFT system that had governed transaction finality since the blockchain launched in 2020. The upgrade targets finality of approximately 150 milliseconds, compared with the previous benchmark of 12.8 seconds, representing a potential improvement of more than 98%. However, an early reading from the Solana Foundat…