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wire 2026-10-05
stories 25

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Kubelet stops leaking unusable link-local nameservers into pods

By RepoJournal · Filed · About Kubernetes · Composed from the cited sources · methodology

Two API-level fixes headline the day: kubelet now filters scoped IPv6 link-local nameservers out of Default-policy pod resolv.conf files, and the CEL cidr() function gains isMask.

[KUBELET]: Filter scoped link-local DNS servers kubernetes/kubernetes

by OchukoWH

kubelet used to copy the node's nameserver entries verbatim, so a scoped entry like fe80::29c:2ff:fea9:fdd0%3 landed in the pod's /etc/resolv.conf and broke resolution. Those entries are now filtered before they reach pods using dnsPolicy: Default.

Add cidr().isMask, clarify docs a bit kubernetes/kubernetes

by danwinship

cidr().isMask joins the CEL API, syncing Kubernetes to the version in cel-go. The motivation is the common mistake of writing isCIDR(val) when you mean isCIDR(val) && cidr(val).isMask, since isCIDR matches non-mask prefixes.

Merge pull request #37813 from Champbreed/bump-tempelis-image kubernetes/test-infra

by kubernetes-prow[bot]

Tempelis picks up a --validate-only mode for the merge PR titled "feat: bump Tempelis image to include --validate-only feature".

Fix WatchList HTTP benchmark snapshot flag kubernetes/test-infra

by Lukasz Szaszkiewicz

The WatchList HTTP benchmark presubmit had a broken snapshot flag; it now passes the correct one.

[ko] Add content/ko/docs/setup/production-environment/tools/kubeadm/dual-stack-support.md kubernetes/website

by neronkang

Korean localization adds the kubeadm dual-stack support page, matching the existing English production-environment docs; the website repo also corrected a wrong instance label in the MySQL StatefulSet example, and kubernetes/release took routine dependabot bumps of sigs.k8s.io/release-utils to 0.12.5 and google.golang.org/api to 0.300.0.

Quick answers

What shipped in Kubernetes on October 5, 2026?
Two API-level fixes headline the day: kubelet now filters scoped IPv6 link-local nameservers out of Default-policy pod resolv.conf files, and the CEL cidr() function gains isMask. In total, 14 commits and 11 pull requests landed.
Who contributed to Kubernetes on October 5, 2026?
6 developers shipped this update, including kubernetes-prow[bot], Lukasz Szaszkiewicz, danwinship, OchukoWH, neronkang, and Nabarun Pal.
What were the notable Kubernetes updates?
[KUBELET]: Filter scoped link-local DNS servers, Add cidr().isMask, clarify docs a bit, and Merge pull request #37813 from Champbreed/bump-tempelis-image.