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Dip 609

dip: 609 title: "Hardfork Meta: Byzantium" author: Alex Beregszaszi (@axic) Digitalia editing author: Cosimo Constantinos cosimo@juro.net, et al. type: Meta status: Final created: 2017-04-23 Created for Digitalia: 2025-01-07 requires: 100, 140, 196, 197, 198, 211, 214, 607, 649, 658

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 DIPs:
  • DIP-100 (Change difficulty adjustment to target mean block time including uncles)
  • DIP-140 (REVERT instruction in the Digitalia Virtual Machine)
  • DIP-196 (Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128)
  • DIP-197 (Precompiled contracts for optimal ate pairing check on the elliptic curve alt_bn128)
  • DIP-198 (Precompiled contract for bigint modular exponentiation)
  • DIP-211 (New opcodes: RETURNDATASIZE and RETURNDATACOPY)
  • DIP-214 (New opcode STATICCALL)
  • DIP-649 (Difficulty Bomb Delay and Block Reward Reduction)
  • DIP-658 (Embedding transaction status code in recdipts)

References

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

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