SIMD-0525-3
Slot Time → 250ms
Slot time step 3 of 4: a block every 250ms, down from the 300ms running today — faster confirmations for everything on Solana.
Slot Time → 250ms is not queued on-chain yet. Official status: Pending mainnet activation on Anza's official schedule. It is already active on testnet.
Pending mainnet activation on Anza's official schedule ↗
at this rollout’s pace: ≈ within a day or two (≈ epoch 1030) — a pace estimate, not a schedule
Mainnet activations begin two full epochs after 95% of stake adopts the release.
- mainnet
- not scheduled
- testnet
- active since epoch 1004 · ≈ 3 weeks ago
- devnet
- active since epoch 1123 · ≈ 2 weeks ago
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.