ethereum.dao_fork

The DAO Fork is a response to a smart contract exploit known as the 2016 DAO Attack where a vulnerable contract was drained of its ether. This fork recovers the stolen funds into a new contract.

FORK_CRITERIA

9
FORK_CRITERIA = ByBlockNumber(1920000)

ethereum.tangerine_whistle

The Tangerine Whistle fork is the first of two forks responding to a denial-of-service attack on the Ethereum network. It tunes the price of various EVM instructions, and reduces the state size by removing a number of empty accounts.

FORK_CRITERIA

10
FORK_CRITERIA = ByBlockNumber(2463000)