CloudNative.Now

The May 2026 edition of CloudNative.Now covers a busy month in the cloud native ecosystem, with a notable focus on security vulnerabilities including the Copy Fail exploit (CVE-2026-31431) affecting Kubernetes and container runtimes. Key Kubernetes v1.36 features are highlighted including admission policies that can't be deleted, server-side sharded list/watch for large clusters, and PSI metrics graduating to GA. The newsletter also covers Cilium network policy nuances, cgroups v1 vs v2, zero-downtime migrations from Ingress NGINX to Envoy Gateway (including Stack Overflow's experience), and CI/CD security lessons from the Cilium project. Tool releases include etcd 3.7.0-beta.0 with RangeStream support and Helm v3.21.0. Upcoming events include KubeCon Japan and KCD Sofia 2026.