Blog
This is the blog section. It has two categories: News and Releases.
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Welcome read-cache-after-write consistency!
Friday, March 13, 2026 in Posts
TL;DR: In version 5.3.0 we introduced strong consistency guarantees for updates with a new API. You can now update resources (both your custom resource and managed resources) and the framework will guarantee that these updates will be instantly …
Version 5.3 Released!
Friday, March 13, 2026 in Releases
We’re pleased to announce the release of Java Operator SDK v5.3.0! This minor version brings two headline features — read-cache-after-write consistency and a new metrics implementation — along with a configuration adapter system, MDC …
Version 5.2 Released!
Tuesday, November 25, 2025 in Releases
We’re pleased to announce the release of Java Operator SDK v5.2! This minor version brings several powerful new features and improvements that enhance the framework’s capabilities for building Kubernetes operators. This release focuses on …
How to guarantee allocated values for next reconciliation
Thursday, May 22, 2025 in Posts
Deprecated Read-cache-after-write consistency feature replaces this functionality. (since version 5.3.0) It provides this functionality also for secondary resources and optimistic locking is not required anymore. See the docs and related blog post …
From legacy approach to server-side apply
Tuesday, February 25, 2025 in Posts
From version 5 of Java Operator SDK server side apply is a first-class feature and is used by default to update resources. As we will see, unfortunately (or fortunately), using it requires changes for your reconciler implementation. For this reason, …
Using k8s' ETCD as your application DB
Thursday, January 16, 2025 in Posts
FAQ: Is Kubernetes’ ETCD the Right Database for My Application? Answer While the idea of moving your application data to Custom Resources (CRs) aligns with the “Cloud Native” philosophy, it often introduces more challenges than benefits. …
Version 5 Released!
Monday, January 06, 2025 in Releases
We are excited to announce that Java Operator SDK v5 has been released. This significant effort contains various features and enhancements accumulated since the last major release and required changes in our APIs. Within this post, we will go through …