Strimzi

1.3.1Networking & Messaging

Nov 4, 2026

A maintenance release raises the Kubernetes support floor to 1.32 and newer, removes older CRD APIs, and replaces Kaniko with Buildah for Connect image builds. It also deprecates PKCS12 certificates, adds Kafka 4.3.2 support, updates dependencies, fixes concurrency issues after the Vert.x removal, and schedules a future default change for `STRIMZI_PKCS12_KEYSTORE_GENERATION`.

Check if affected (3)

breakingKubernetes support floor raised to 1.32
Applies if you do not use Kubernetes 1.32 and newer.
Support is limited to Kubernetes 1.32 and newer. Kubernetes 1.30 and 1.31 are no longer supported.
breakingThe older CRD APIs v1beta2, v1beta1, and v1alpha1, removed
Applies if you use v1beta2, v1beta1, or v1alpha1 APIs.
Only the v1 CRD API is supported. The older v1beta2, v1beta1, and v1alpha1 APIs are removed, and custom resources and CRDs must be converted before upgrading.
convert all custom resources and upgrade the CRDs
breakingKaniko replaced by Buildah for Connect image builds
Applies if you use Kaniko.
Kaniko is removed from Connect image building. Buildah is now the only tool used to build Connect images.

Plan ahead (1)

deprecatedPKCS12 format certificates deprecated
Applies if you use PKCS12 format certificates.
PKCS12 format certificates are deprecated.

All 4 other recorded changesconstraints 1 · defaults 1 · fixes 1 · value changes 1

constraints (1)

* Added support for Kafka 4.3.2

defaults (1)

The STRIMZI_PKCS12_KEYSTORE_GENERATION env var will be set to false by default in a future release.

fixes (1)

* Fix concurrency issues after Vert.x removal

value changes (1)

* Dependency updates (Cruise Control, Vert.x, Netty, Strimzi Kafka Bridge, Kafka Exporter, Strimzi OAuth, Jackson)

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