SIMD-0512
SHA512 Syscall
A native SHA512 syscall for on-chain programs.
SHA512 Syscall 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 ↗
Network readiness95.0% of stake · threshold 95%
Mainnet activations begin two full epochs after 95% of stake adopts the release.
- mainnet
- not scheduled
- testnet
- active since epoch 977 · ≈ 7 weeks ago
- devnet
- active since epoch 1092 · ≈ 6 weeks ago
Telegram alertsKnow the moment an upgrade is queued — join @xrootdev_updates or message the bot /start for a DM.
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.