$ cat kubernetes/week/2026-09-14.log
the week in review · Sep 14 – Sep 20, 2026
Master drops containerd 1.7 over RuntimeConfig RPC
By RepoJournal · composed from the cited sources · human-reviewed weekly · methodology
Kubelet's fallback to the configured cgroup driver is gone, and StorageClass declarative validation is now stable.
sig-node: remove containerd 1.7 jobs from master kubernetes/test-infra
The kubelet's fallback to the configured cgroup driver when a CRI implementation does not support the RuntimeConfig RPC was removed, and its node E2E job fails during kubelet startup because the containerd 1.7 runtime in COS 117 does not implement that RPC. The sig-node 1.7 jobs come off master as a result, so clusters pinned to the older runtime cannot track master until they move to a newer c...
Remove optimistic MountedByNode default in AddVolumeNode kubernetes/kubernetes
AddVolumeNode seeded inUseVolumes with the volume on first attach, defaulting MountedByNode to true until node status proved otherwise, an inference the PR dates to before an earlier attach-detach change. Dropping that optimistic default means volume attach state now comes from reported node status rather than an assumption.
Merge pull request #141946 from troychiu/cleanup-dynamic-resource-allocation kubernetes/kubernetes
The DynamicResourceAllocation feature gate is removed from the tree outright, so there is no longer a gate to turn DRA on or off. Code and test harnesses that set or check that gate will need to stop referencing it.
storage: graduate StorageClass declarative validation to stable kubernetes/kubernetes
Declarative validation rules for StorageClass graduated from beta to stable, with the beta prefix stripped from the provisioner and parameter markers. Anyone currently setting storageclass.k8s.io/validation-beta-1-37 annotations can drop them; format tests for those rules keep the same YAML, just without the version prefix.
address comment: allow several YAML documents per extensions file kubernetes/kubernetes
The code-generator now accepts several YAML documents per extensions file. The PR argument is direct: splitting a file into documents is the only way a "---" is noticed at all, and UnmarshalStrict alone would keep the first document and silently drop the rest.
Fix distroless-iptables s390x build and raise build timeout kubernetes/release
Debian stopped publishing linux/s390x for bookworm-slim in its 2026-08-03 build now that bookworm is oldstable, which broke sub-push-image-s390x for every bookworm variant. The bookworm variants are pinned to bookworm-20260713-slim, the last build with s390x, and the build timeout is raised.
DRA: optimize allocated shared device lookups in structured allocator kubernetes/kubernetes
The structured allocator reworks how it looks up already-allocated shared devices, cutting the cost of repeated lookups during DRA allocation in large device pools.
validation-gen: hoist package-level variables out of eachVal, eachKey and ifMode kubernetes/kubernetes
Three validation-gen wrappers rebuilt Validations from Functions and Deferred only, so a package-level variable requested under eachVal, eachKey or ifMode was silently dropped; validators that rely on those variables now keep them. Alongside: go-jose and go-oidc were bumped to their latest versions across the published staging repos, kubectl explain gained shell completion, golang.org/x bumps a...
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