Network upgrade · static membership
Byzantium
Mainnet
16 Oct 2017
shipped
Core EIPs
9
shipped
Track mix
Across all listed Core EIPs, every stage.
Included EIPs
9
- EIP-100Change difficulty adjustment to target mean block time including unclesFinalLegacy PoW
- EIP-140REVERT instructionFinalSplurge
- EIP-196Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128FinalSplurge
- EIP-197Precompiled contracts for optimal ate pairing check on the elliptic curve alt_bn128FinalSplurge
- EIP-198Big integer modular exponentiationFinalSplurge
- EIP-211New opcodes: RETURNDATASIZE and RETURNDATACOPYFinalSplurge
- EIP-214New opcode STATICCALLFinalSplurge
- EIP-649Metropolis Difficulty Bomb Delay and Block Reward ReductionFinalLegacy PoW
- EIP-658Embedding transaction status code in receiptsFinalSplurge
Activation
| Network | Epoch | Timestamp | Time (UTC) | Fork ID |
|---|---|---|---|---|
| Mainnet | — | 1508112000 | 16 Oct 2017 00:00 UTC | — |
Pre-Dencun upgrades carry the mainnet date only.