SIMD-0406
Maximum Instruction Accounts
Enforces a protocol-level cap on accounts per instruction.
Maximum Instruction Accounts is active on Solana mainnet since epoch 1000 — activated 8 weeks ago.
- mainnet
- active since epoch 1000 · 8 weeks ago
- testnet
- active since epoch 977 · 2 months ago
- devnet
- active since epoch 1085 · 2 months ago
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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.