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Releases

AI-analyzed release notes for CNCF graduated and incubating projects.

Apr 2026Clear ×
containerdv2.3.0Kubernetes CoreApr 30, 2026

A substantial operator-facing release with new capabilities, behavior changes, a compatibility constraint, and a deprecation. It is the first annual LTS release under a Kubernetes-aligned cadence, with support planned for at least two years.

Action needed (1)

  • breakingPlugin names disallow commas

    OCI hook adjustments accumulate owners, and commas are disallowed in plugin names in this release.

Plan ahead (1)

  • deprecatedThe shim.Command API, deprecated

    Applies if you use shim.Command.

Source
Kubernetesv1.36.0Kubernetes CoreApr 22, 2026

A broad operator-significant release with API, configuration, CLI default, scheduling, runtime, feature-gate, metric, and dependency changes. Upgrade review and testing matter for users of removed or deprecated interfaces, changed defaults, custom scheduler integrations, CRDs, audit logging, and affected metrics.

Action needed (11)

  • breakingStrictIPCIDRValidation enabled by default

    The StrictIPCIDRValidation feature gate in kube-apiserver is enabled by default.

  • breakingThe default debug profile, changed to general

    The default debug profile changes from legacy to general.

  • breakingWatchCacheInitializationPostStartHook enabled by default

    The WatchCacheInitializationPostStartHook feature gate is enabled by default.

  • breakingKubeletPSI graduation to GA

    The KubeletPSI feature graduated to GA and is enabled by default.

  • breakingRelaxedServiceNameValidation at beta, enabled by default

    The RelaxedServiceNameValidation feature gate graduated to beta and is enabled by default.

  • breakingRestartAllContainersOnContainerExits at beta, enabled by default

    The RestartAllContainersOnContainerExits feature gate graduated to beta and is enabled by default.

  • breakingSuspended-job feature gates enabled by default

    The MutablePodResourcesForSuspendedJobs and MutableSchedulingDirectivesForSuspendedJobs feature gates are enabled by default.

  • breakingAtomicFIFO informer store updates

    Default informer behavior now updates store state with all objects in a list or relist before invoking individual-item handler methods. This behavior is associated with AtomicFIFO.

  • breakingUnlockWhileProcessing informer behavior

    Informers can now enqueue new watch events while already-queued events are being processed. This behavior is associated with UnlockWhileProcessing.

  • breakingClientsAllowCARotation functionality enabled by default

    This functionality is enabled by default and can be disabled through the ClientsAllowCARotation feature gate.

  • breakingClientsAllowTLSCacheGC functionality enabled by default

    This functionality is enabled by default and can be controlled through the ClientsAllowTLSCacheGC feature gate.

Check if affected (25)

  • breakingThe volume_operation_total_errors metric, renamed

    Applies if you use volume_operation_total_errors.

  • breakingThe git-repo volume plugin, disabled

    Applies if you use the git-repo volume plugin.

  • breakingAllowlistEntry.Name, renamed to AllowlistEntry.Command

    Applies if you configure AllowlistEntry.Name.

  • + 22 more on the release page

Plan ahead (6)

  • deprecatedService .spec.externalIPs deprecation

    Applies if you configure Service .spec.externalIPs.

  • deprecatedDirect access to metav1.FieldsV1.Raw, deprecated

    Applies if you use metav1.FieldsV1.Raw.

  • deprecatedMinNodeScore and MaxNodeScore, deprecated

    Applies if you use MinNodeScore or MaxNodeScore.

  • + 3 more on the release page
Source
CoreDNSv1.14.3Kubernetes CoreApr 22, 2026

A maintenance release that adds operator-facing options and transport, plugin, and protocol support while correcting defects. It is built with Go 1.26.2, which contains fixes for disclosed CVEs; other changes concern operators using the affected features or behaviors.

Action needed (1)

Check if affected (1)

  • breakingOversized DoH GET query parameter rejection

    Applies if you use DoH.

Source
containerdv2.2.3Kubernetes CoreApr 14, 2026

containerd v2.2.3 includes a disclosed security-related update to spdystream, alongside correctness, runtime, extraction, and dependency/toolchain changes. The recorded advisory is CVE-2026-35469.

Action needed (1)

  • securityhighspdystream dependency update for CVE-2026-35469

    The spdystream dependency is updated in containerd v2.2.3 in connection with CVE-2026-35469.

Source
containerdv2.0.8Kubernetes CoreApr 14, 2026

containerd v2.0.8 is a maintenance release with security fixes, a CNI restart correction, and dependency and toolchain updates. The security changes concern spdystream and credential handling in CRI pod events.

Action needed (1)

  • securityhighThe spdystream update for CVE-2026-35469

    The spdystream security update for CVE-2026-35469 ships in containerd v2.0.8.

Check if affected (1)

  • securityCredential sanitization before gRPC returns

    Applies if you use pod events through the Container Runtime Interface (CRI).

Source
containerdv2.1.7Kubernetes CoreApr 14, 2026

A maintenance release with fixes across CRI, runtime, image distribution, and security-sensitive paths. It also updates dependencies and toolchains, including a spdystream security update and a fix for credential leakage.

Action needed (2)

  • securityhighCVE-2026-35469 and GHSA-pc3f-x583-g7j2

    The release includes CVE-2026-35469 and GHSA-pc3f-x583-g7j2, related to the spdystream security fix.

  • securityhighgithub.com/moby/spdystream v0.5.1 update

    The release updates github.com/moby/spdystream to v0.5.1. The update carries fixes associated with CVE-2026-35469 and GHSA-pc3f-x583-g7j2.

Check if affected (1)

  • securityCredential sanitization before gRPC returns

    Applies if pod events are used.

Source
containerdv1.7.31Kubernetes CoreApr 14, 2026

containerd v1.7.31 is a maintenance release with a disclosed security fix in spdystream, alongside dependency, toolchain, correctness, and behavior updates. The spdystream fix requires upgrading; the other changes matter when affected behaviors or versions are in use.

Action needed (1)

Check if affected (1)

  • securitySanitized gRPC errors in pod events

    Applies if you use pod events.

Source
Helmv4.1.4Kubernetes CoreApr 9, 2026

A maintenance release with security fixes affecting Helm plugins. It also changes plugin-load error handling in the CLI and getter paths.

Action needed (1)

  • securitymediumGHSA-hr2v-4r36-88hr security fix

    GHSA-hr2v-4r36-88hr is addressed in this release.

Check if affected (2)

  • securityhighPlugin verification when .prov is missing

    Applies if you use plugins.

  • securityhighPlugin metadata version path traversal

    Applies if you use plugins.

Source
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