Kubernetes 1.31 Upgrade Guide: Breaking Changes and a Safe Migration Path
Kubernetes 1.31 is one of the more disruptive recent releases โ removed in-tree volume plugins, AppArmor going GA, structured authentication maturing, and several long-deprecated APIs finally going away. This is a battle-tested upgrade guide for production clusters: what breaks, what to test on staging, and a safe step-by-step migration path that does not page you at 2 AM....