# Solana Activates Alpenglow

> Solana switches to faster Alpenglow protocol as price drops 11.9% from Oct. 5.
- Title: Solana Activates Alpenglow · TokenPost | Shortify
- Summary: Solana switches to faster Alpenglow protocol as price drops 11.9% from Oct. 5. Solana activated Alpenglow on Oct. 21, reducing transaction finality target to…
- Keywords: solana, alpenglow, solar, mainnet, transaction finality, price drop, october 2023, crypto, finance, Activates, TokenPost
- Source: TokenPost — https://tokenpost.com/news/technology/37151
- Published: 2026-10-21T23:23:29+00:00
- Read time: 1 min
- Topics: solana, alpenglow, solar, mainnet, transaction finality, price drop, october 2023, crypto, finance
## Solana Activates Alpenglow
Solana activated Alpenglow on its mainnet Oct. 21, replacing TowerBFT with a protocol designed to speed transaction finality.
## Price Falls 11.9% From Oct. 5
SOL closed at $106.39 on Oct. 20, down 11.9% from $120.76 on Oct. 5.
## Alpenglow Targets 150ms Finality
Alpenglow aims for transaction finality in 150 milliseconds, a design target versus TowerBFT's 400-millisecond slot schedule.
## Key takeaway

Solana activated Alpenglow on Oct. 21, reducing transaction finality target to 150ms while its price fell 11.9% from Oct. 5.