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

May 2026Clear ×Project: CiliumClear ×

Ciliumv1.19.4Networking & MessagingMay 13, 2026

ACTION 2CHECK 1OTHER 46View full analysis

A maintenance release with several operator-visible fixes, narrower EndpointSlice watch behavior, Helm configurability, and dependency and image updates. The EndpointSlice filtering change affects configurations that set a service proxy name, while the release also updates the github.com/moby/spdystream dependency.

Action needed (2)

securityThe github.com/moby/spdystream module update
The github.com/moby/spdystream module is updated to v0.5.1.
breakingService-label filtering for EndpointSlice watches
The loadbalancer/reflectors component filters EndpointSlice watches by service labels.

Check if affected (1)

breakingLabel filtering for EndpointSlices
Applies if you set --k8s-service-proxy-name.
When --k8s-service-proxy-name is set, EndpointSlices are filtered at the watch level by the service.kubernetes.io/service-proxy-name label, matching the existing Services filtering. Operators that manage EndpointSlices themselves must add the matching label to those slices.

Source ↗

Ciliumv1.17.16Networking & MessagingMay 13, 2026

ACTION 1CHECK 1OTHER 23View full analysis

A maintenance release with an enforced policy behavior change, bug fixes, new metrics, and Helm image overrides. It also updates dependencies and container images and refreshes container image manifests.

Action needed (1)

securityThe github.com/moby/spdystream dependency update
The github.com/moby/spdystream module is updated to v0.5.1 in v1.17.16.

Check if affected (1)

breakingCiliumLocalRedirectPolicy addressMatcher override behavior
Applies if you use addressMatcher in CiliumLocalRedirectPolicy and do not enable --enable-lrp-address-matcher-override=true.
In v1.17.16, CiliumLocalRedirectPolicy addressMatcher refuses to override an existing Service frontend. Set --enable-lrp-address-matcher-override=true to restore the legacy behavior.

Source ↗

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