World Chain Activates Karst Upgrade As Older OP Stack Nodes Risk Divergence

TL;DR World Chain activated the Karst upgrade at 12:00 UTC on September 21. Node operators need op-geth v1.101701.0 or newer and op-node v1.16.9 or newer. End users do not need to take any action. World Chain has completed its Karst network upgrade, putting new OP Stack software…