Releases

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

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All AI & ML CI/CD & App Delivery Kubernetes Core Networking & Messaging Observability Orchestration & Management Provisioning & Runtime Security Storage & Data

etcdv3.7.1Kubernetes CoreJul 23, 2026

ACTION 3CHECK 1OTHER 2View full analysis

A maintenance release changes server defaults and behavior, fixes correctness issues, and addresses disclosed security issues in watch permissions and google.golang.org/grpc. It also includes fixes for unbounded peer lease HTTP request reads and nested transaction request handling.

Action needed (3)

securityhighThe google.golang.org/grpc dependency update
The release updates google.golang.org/grpc to version 1.82.1 to address GHSA-hrxh-6v49-42gf.
breakingThe snapshotLimitByte default
The release sets a reasonable default value for snapshotLimitByte.
breakingThe client HTTP server ReadHeaderTimeout
The client HTTP server now sets ReadHeaderTimeout.

Check if affected (1)

securityhighWatch responses restricted to authorized keys
Applicability is not stated in the release notes.

Source ↗

etcdv3.6.14Kubernetes CoreJul 23, 2026

ACTION 5OTHER 5View full analysis

A maintenance release with security fixes, dependency updates, and changes to defaults and behavior. The changed snapshotLimitByte default and the security fixes are the main release concerns; other correctness fixes require no setup changes.

Action needed (5)

securitycriticalThe golang.org/x/net dependency update
The golang.org/x/net dependency is updated from 0.54.0 to 0.55.0 to address CVE-2026-25681, CVE-2026-27136, CVE-2026-39821, CVE-2026-42502, CVE-2026-25680, and CVE-2026-42506.
securityhighAuthorization fix for watch responses, GHSA-xg4h-6gfc-h4m8
An authorization issue is fixed where a user with read permission on one key could receive watch responses for every key starting from that key. This addresses GHSA-xg4h-6gfc-h4m8.
securityhighThe tlsHandshakeTimeout setting for tlsListener, GHSA-6vch-q96h-7gc3
The release sets tlsHandshakeTimeout for tlsListener. This addresses GHSA-6vch-q96h-7gc3.
securityhighThe google.golang.org/grpc dependency update
The google.golang.org/grpc dependency is updated to 1.82.1 to address GHSA-hrxh-6v49-42gf.
breakingThe snapshotLimitByte default value
The default value for snapshotLimitByte is set to a reasonable value in this release.

Source ↗

CoreDNSv1.14.5Kubernetes CoreJul 10, 2026

ACTION 1CHECK 1OTHER 30View full analysis

A release with operator-visible behavior corrections, new capabilities, configuration changes, and updated defaults. The changes span CoreDNS core behavior and multiple plugins, with no security advisories or explicitly described vulnerabilities.

Action needed (1)

breakingGo TLS defaults in core
The core component uses Go TLS defaults in this release.

Check if affected (1)

breakingDefault truncate amount for bare truncate
Applies if you configure truncate.

Source ↗

containerdv2.2.6Kubernetes CoreJul 9, 2026

ACTION 1OTHER 3View full analysis

A maintenance release with CRI and image-distribution fixes. The CRI constraint on CreateContainer requests may require action, while the other fixes take effect through the upgrade.

Action needed (1)

breakingCreateContainer rejection for stopped sandboxes
The CRI now rejects CreateContainer requests when the sandbox is not running. This constraint ships in containerd v2.2.6.

Source ↗

containerdv2.2.5Kubernetes CoreJun 18, 2026

ACTION 2OTHER 7View full analysis

A maintenance release with disclosed security fixes, dependency and toolchain updates, and changes to checkpoint and image-processing behavior. User-database reads are bounded in openUserFile, which may reject inputs that previously worked.

Action needed (2)

securitycriticalSecurity fixes for five disclosed CVEs
The release includes fixes for CVE-2026-50195, CVE-2026-53488, CVE-2026-53492, CVE-2026-53489, and CVE-2026-47262, along with the associated GHSA-33vj-92qq-66hc, GHSA-cvxm-645q-p574, GHSA-jpcc-p29g-p8mq, GHSA-rgh6-rfwx-v388, and GHSA-xhf5-7wjv-pqxp advisories.
breakingBounded openUserFile user-database reads
User-database file reads in openUserFile are now bounded, so inputs that previously worked may be rejected.

Source ↗

CRI-Ov1.35.3Kubernetes CoreMay 5, 2026

ACTION 2OTHER 4View full analysis

A maintenance release that adds a runtime metric and a GOMAXPROCS configuration field, fixes two runtime defects, and reverts CNI monitoring after node bootstrapping regressions. It also updates the spdystream dependency to address CVE-2026-35469.

Action needed (2)

securityhighThe spdystream dependency update for CVE-2026-35469
The spdystream dependency is updated to address CVE-2026-35469. The update ships in this release.
breakingCRI-O CNI monitoring, reverted
CRI-O reverts CNI monitoring because it caused node bootstrapping regressions. The change ships in this release.

Source ↗

containerdv2.3.0Kubernetes CoreApr 30, 2026

ACTION 1PLAN 1OTHER 41View full analysis

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

ACTION 11CHECK 25PLAN 6OTHER 293View full analysis

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 ↗

Helmv3.20.0Kubernetes CoreJan 21, 2026

ACTION 1OTHER 44View full analysis

A maintenance release with dependency and toolchain updates, several defect corrections, and a new repository timeout flag. The pkg/registry login option for passing TLS configuration in memory has been removed.

Action needed (1)

breakingThe pkg/registry in-memory TLS configuration login option, removed
The pkg/registry login option for passing TLS configuration in memory is reverted and does not ship in this release.

Source ↗

CoreDNSv1.14.0Kubernetes CoreJan 8, 2026

ACTION 1OTHER 7View full analysis

A maintenance release with a new regex length constraint, correctness fixes, and plugin capability and behavior changes. It does not disclose a security advisory or explicitly exploitable vulnerability.

Action needed (1)

breakingThe core regex length limit
core adds a length limit for regular expressions.

Source ↗

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