SIMD-0326
Alpenglow
The new consensus algorithm — the largest consensus change since launch, targeting dramatically faster finality.
Alpenglow is active on Solana mainnet since epoch 1064 — activated 3 hours ago.
- mainnet
- active since epoch 1064 · 3 hours ago
- testnet
- active since epoch 1042 · 3 weeks ago
- devnet
- active since epoch 1167 · 3 weeks ago
Telegram alertsKnow the moment an upgrade is queued — join @xrootdev_updates or message the bot /start for a DM.
The full guideWhat breaks, what to check, and how to prepare →How we know
Solana ships protocol changes behind on-chain switches called feature gates. This page reads the switch itself about every minute — once an activation is requested, it completes at the next epoch boundary, which is where the countdown comes from. No announcements, no invented dates.