What does SHA512 Syscall change?

A native SHA512 syscall for on-chain programs.

SIMD-0512: SHA512 Syscall — Solana Activation Status

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 readiness92.4% of stake · threshold 95%

mainnet: not queued
testnet: active since epoch 977 · ≈ 3 months ago
devnet: active since epoch 1092 · ≈ 2 months 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.