mirror of https://github.com/status-im/EIPs.git
40 lines
1.7 KiB
Markdown
40 lines
1.7 KiB
Markdown
---
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eip: 609
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title: "Hardfork Meta: Byzantium"
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author: Alex Beregszaszi (@axic)
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type: Meta
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status: Final
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created: 2017-04-23
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requires: 100, 140, 196, 197, 198, 211, 214, 607, 649, 658
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---
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## Abstract
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This specifies the changes included in the hard fork named Byzantium.
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## Specification
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- Codename: Byzantium
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- Aliases: Metropolis/Byzantium, Metropolis part 1
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- Activation:
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- Block >= 4,370,000 on Mainnet
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- Block >= 1,700,000 on Ropsten testnet
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- Included EIPs:
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- [EIP 100](https://eips.ethereum.org/EIPS/eip-100) (Change difficulty adjustment to target mean block time including uncles)
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- [EIP 140](https://eips.ethereum.org/EIPS/eip-140) (REVERT instruction in the Ethereum Virtual Machine)
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- [EIP 196](https://eips.ethereum.org/EIPS/eip-196) (Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128)
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- [EIP 197](https://eips.ethereum.org/EIPS/eip-197) (Precompiled contracts for optimal ate pairing check on the elliptic curve alt_bn128)
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- [EIP 198](https://eips.ethereum.org/EIPS/eip-198) (Precompiled contract for bigint modular exponentiation)
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- [EIP 211](https://eips.ethereum.org/EIPS/eip-211) (New opcodes: RETURNDATASIZE and RETURNDATACOPY)
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- [EIP 214](https://eips.ethereum.org/EIPS/eip-214) (New opcode STATICCALL)
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- [EIP 649](https://eips.ethereum.org/EIPS/eip-649) (Difficulty Bomb Delay and Block Reward Reduction)
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- [EIP 658](https://eips.ethereum.org/EIPS/eip-658) (Embedding transaction status code in receipts)
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## References
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1. https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement/
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## Copyright
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Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).
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