#solanaalpenglow升级将于10月21日激活
Finality time cut from 12.8 seconds to 150 milliseconds—but the “success” you see won’t get any faster.
▪️ Around 15:00 UTC on 10/21 (10:50 Eastern), Solana’s mainnet will activate the Alpenglow upgrade: TowerBFT is retiring and being replaced by Votor.
▪️ Official figures: finalization time will drop from about 12.8 seconds to around 150 milliseconds—roughly 85 times faster.
▪️ Votor moves voting outside the block. Validators connect directly and aggregate votes into a certificate; finality is reached as soon as the first round gets support from more than 80% of stake.
▪️ This is the first of two phases. The second, Rotor, will replace the block propagation protocol, but it hasn’t launched yet.
The disagreement isn’t about whether Solana is fast, but which part gets faster. The “success” shown in the interface is based on `processed` status and appears in seconds; exchanges and custodians wait for `finalized` before crediting transactions—that’s the 12.8 seconds. The upgrade changes the latter: block production cadence stays the same, but the wait from “confirmed” to “irreversible” is shortened. Retail users may not notice much difference; institutions are the ones that will need to rewrite their timeout logic.
Keep an eye on three things:
① After activation, does finalization really reach the 150-millisecond range, or will there be a transition period first?
② Does the 80% threshold hold up on a real network? It’s a condition for the first round, not the norm.
③ When will Rotor follow? Changing voting without changing propagation means the ceiling hasn’t been raised yet.
What do you think: will you notice a difference from this speedup? $SOL
Finality time cut from 12.8 seconds to 150 milliseconds—but the “success” you see won’t get any faster.
▪️ Around 15:00 UTC on 10/21 (10:50 Eastern), Solana’s mainnet will activate the Alpenglow upgrade: TowerBFT is retiring and being replaced by Votor.
▪️ Official figures: finalization time will drop from about 12.8 seconds to around 150 milliseconds—roughly 85 times faster.
▪️ Votor moves voting outside the block. Validators connect directly and aggregate votes into a certificate; finality is reached as soon as the first round gets support from more than 80% of stake.
▪️ This is the first of two phases. The second, Rotor, will replace the block propagation protocol, but it hasn’t launched yet.
The disagreement isn’t about whether Solana is fast, but which part gets faster. The “success” shown in the interface is based on `processed` status and appears in seconds; exchanges and custodians wait for `finalized` before crediting transactions—that’s the 12.8 seconds. The upgrade changes the latter: block production cadence stays the same, but the wait from “confirmed” to “irreversible” is shortened. Retail users may not notice much difference; institutions are the ones that will need to rewrite their timeout logic.
Keep an eye on three things:
① After activation, does finalization really reach the 150-millisecond range, or will there be a transition period first?
② Does the 80% threshold hold up on a real network? It’s a condition for the first round, not the norm.
③ When will Rotor follow? Changing voting without changing propagation means the ceiling hasn’t been raised yet.
What do you think: will you notice a difference from this speedup? $SOL