ethereum.constantinople
The Constantinople fork reduces mining rewards, delays the difficulty bomb, and introduces new EVM instructions for logical shifts, counterfactual contract deployment, and computing bytecode hashes.
FORK_CRITERIA
| 9 | FORK_CRITERIA = ByBlockNumber(7280000) |
|---|
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.
FORK_CRITERIA
| 9 | FORK_CRITERIA = ByBlockNumber(9069000) |
|---|