BlockBeats News, May 10th, Optimism announced today that the Isthmus hard fork was successfully activated, bringing key features of the Ethereum Pectra upgrade to the OP Stack and Superchain. This upgrade comes just two days after the launch of Pectra on the Ethereum mainnet, with Superchain being the first L2 ecosystem to support the Pectra upgrade. The upgrade covers several OP Stack chains including Base, Ink, OP Mainnet, Soneium, Unichain, and others.