News · Tech & Protocols
The protocol-level overhaul targets sub-second finality of 150 milliseconds, moving validator voting off-chain and replacing variable fees with a flat epoch admission cost.
Key point 1 of 3
01
Alpenglow activates at Solana epoch 1064 on Oct. 21, targeting transaction finality of roughly 150 milliseconds.
Key point 2 of 3
02
Votes move off-chain using aggregated BLS certificates, retiring Proof of History and clearing block space.
Key point 3 of 3
03
A flat 0.8 SOL per-epoch Validator Admission Ticket under SIMD-0357 replaces variable per-vote transaction fees.
Context
Solana's TowerBFT consensus treated validator votes as standard transactions, consuming roughly 75% of network capacity and taking seconds to finalize.
Why it matters
Validators see predictable baseline fees of 0.8 SOL per epoch rather than 2 SOL daily, though block leaders forfeit vote-transaction revenue.
What to watch
Monitoring validator client stability on Agave during epoch 1064 transition, followed by the rollout of Phase 2 fast leader handovers and Phase 3 Rotor propagation.
Sources
Built from 1 primary source, machine-checked before publication.
Keep reading
Read the full story
AI-generated, source-verified. Sources, citations and live prices on the article page.