On May 31, Ethereum Classic completed the planned upgrade to incorporate Ethereum Istanbul features into the classic chain, making the two protocols fully compatible with each other. Hard fork Phoenix is the third in a series of recent updates designed to bring Ethereum Classic into line with Ethereum. According to Ethereum developer Afri SCHOEDON, the inclusion of Istanbul features means that both projects "have reached the parity of the protocol."
As a result of the fork, minor inconveniences arose: a small part of the miners remained on the old chain. Some clients were also not synchronized with the hard fork, especially Hyperledger Besu. However, the ETC team said that this should not affect the network, as Besu was mainly used in corporate settings.
Achieving protocol parity may allow Ethereum developers to directly port their applications to a subsidiary blockchain.
Image courtesy of Bloomchain