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EIP-609

Hardfork Meta: Byzantium

FinalMeta
Created: 2017-04-23
Requires: EIP-100, EIP-140, EIP-196, EIP-197, EIP-198, EIP-211, EIP-214, EIP-607, EIP-649, EIP-658
Alex Beregszaszi (@axic)
Original linkEdit
1 min read

EIP-609 is a proposal for the hard fork named Byzantium, also known as Metropolis/Byzantium or Metropolis part 1. The activation of this hard fork is set to occur at block >= 4,370,000 on the Mainnet and block >= 1,700,000 on the Ropsten testnet. The proposal includes several Ethereum Improvement Proposals (EIPs) such as EIP-100, which changes the difficulty adjustment to target mean block time including uncles, and EIP-140, which introduces the REVERT instruction in the Ethereum Virtual Machine. Other EIPs included in the proposal are EIP-196, EIP-197, and EIP-198, which introduce precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128, optimal ate pairing check on the elliptic curve alt_bn128, and bigint modular exponentiation, respectively. Additionally, EIP-211 introduces new opcodes RETURNDATASIZE and RETURNDATACOPY, while EIP-214 introduces a new opcode STATICCALL. EIP-649 delays the difficulty bomb and reduces block rewards, while EIP-658 embeds transaction status code in receipts. Overall, the proposal aims to improve the efficiency and security of the Ethereum network.

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Original

Abstract

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

Specification

  • 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)

References

  1. https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement/

Copyright and related rights waived via CC0.

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