EIP 1679: Hardfork Meta: Istanbul

Author	Alex Beregszaszi, Afri Schoedon
Discussions-To	https://ethereum-magicians.org/t/hardfork-meta-istanbul-discussion/3207
Status	Draft
Type	Meta
Created	2019-01-04
Requires	1716

Abstract

This meta-EIP specifies the changes included in the Ethereum hardfork named Istanbul.

Specification

• Codename: Istanbul

Activation

• Block >= 9,069,000 on the Ethereum mainnet
• Block >= 6,485,846 on the Ropsten testnet
• Block >= 14,111,141 on the Kovan testnet
• Block >= 5,435,345 on the Rinkeby testnet
• Block >= 1,561,651 on the Görli testnet

Included EIPs

• EIP-152: Add Blake2 compression function F precompile
• EIP-1108: Reduce alt_bn128 precompile gas costs
• EIP-1344: Add ChainID opcode
• EIP-1884: Repricing for trie-size-dependent opcodes
• EIP-2028: Calldata gas cost reduction
• EIP-2200: Rebalance net-metered SSTORE gas cost with consideration of SLOAD gas cost change

References

1. Included EIPs were finalized in All Core Devs Call #68
2. https://medium.com/ethereum-cat-herders/istanbul-testnets-are-coming-53973bcea7df

Copyright

Copyright and related rights waived via CC0.