K3s has released version v1.33.6+k3s1, updating the lightweight Kubernetes distribution to Kubernetes v1.33.6 with extensive bug fixes and component updates. The release addresses over 20 issues including critical networking fixes, improved server shutdown sequencing, and etcd member promotion problems.
Key networking improvements include fixes for network policy fatal errors when node IPs change, corrected IPv6 handling for load balancer addresses, and updated components including Flannel v0.27.4, kube-router, and CNI plugins. The release also bumps Traefik to v3.5.1, CoreDNS to v1.13.1, and runc to v1.3.3.
The update includes Kine v0.14.6 with PostgreSQL object count fixes and improved metrics registration, Spegel v0.4.0 for container image distribution, and Local Path Provisioner v0.0.32. Additional fixes address certificate rotation, server token validation, CLI rendering issues, and Helm controller operations on IPv6-only nodes.
The release runs on Containerd v2.1.5, Etcd v3.5.21, and SQLite 3.50.4, with the project now building releases through GitHub Actions. The v1.33.6+k3s1 release is available now from the K3s GitHub repository.