ethereum.istanbul

The Istanbul fork makes changes to the gas costs of EVM instructions and data, adds a cryptographic primitive, and introduces an instruction to fetch the current chain identifier.

1"""
2The Istanbul fork makes changes to the gas costs of EVM instructions and data,
3adds a cryptographic primitive, and introduces an instruction to fetch the
4current chain identifier.
5"""
6
7from ethereum.fork_criteria import ByBlockNumber
8
9FORK_CRITERIA = ByBlockNumber(9069000)