EIP-609 - "Hardfork Meta: Byzantium"

Created	2017-04-23
Status	Final
Type	Meta
Authors
Requires	EIP-100 EIP-140 EIP-196 EIP-197 EIP-198 EIP-211 EIP-214 EIP-607 EIP-649 EIP-658

Abstract

This specifies the changes included in the hard fork named Byzantium.

Codename: Byzantium
Aliases: Metropolis/Byzantium, Metropolis part 1
Activation:
Block >= 4,370,000 on Mainnet
Block >= 1,700,000 on Ropsten testnet
Included EIPs:
EIP-100 (Change difficulty adjustment to target mean block time including uncles)
EIP-140 (REVERT instruction in the Ethereum Virtual Machine)
EIP-196 (Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128)
EIP-197 (Precompiled contracts for optimal ate pairing check on the elliptic curve alt_bn128)
EIP-198 (Precompiled contract for bigint modular exponentiation)
EIP-211 (New opcodes: RETURNDATASIZE and RETURNDATACOPY)
EIP-214 (New opcode STATICCALL)
EIP-649 (Difficulty Bomb Delay and Block Reward Reduction)
EIP-658 (Embedding transaction status code in receipts)