Solana's Alpenglow upgrade hits 54ms median finality on testnet
- —Testnet median finality of 54ms versus roughly 12.8 seconds on mainnet
- —Activated on testnet September 24, 2026, and on devnet a day later
- —Votor replaces TowerBFT in the first consensus overhaul since 2020
- —SIMD-0326 passed with 98.27% validator approval at 52% stake participation
Why it matters: If mainnet approaches testnet speeds, Solana strengthens its case for high-frequency and payments use, though timing hinges on the Agave 4.3 release.
Source: Crypto Briefing