Navigating the Inevitable: Kubernetes Breaking Changes Behind the Scenes
Talkat KubeCon + CloudNativeCon Europe 2025 · on Thursday, 2025-04-03· at 16:00· Level 1 | Hall Entrance N10 | Room H·
summary
Kubernetes runs a strict KEP-driven process with a ~13–14 week release cadence, production readiness freeze ~11 weeks before, enhancements freeze ~10 weeks before, and code/test freeze ~5 weeks before; general GA features follow deprecation=12 months or two releases, beta = three months/one release, alpha = removable anytime. Common removals: API version upgrades with server-side conversion (example v1beta3 -> v1), CLI flags moved to component config (kubelet), Docker shim removal and registry moves (gcr.io -> registry.k8s.io); infrastructure has no SLA so teams mirror images and test migrations early.
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chapters (15)
- 0:00Kubernetes breaking changes intro
- 2:53Types of breaking changes
- 5:43Deprecation cycles
- 8:51Why no v2.0
- 11:42API removals examples
- 13:05API conversion demo
- 15:39Kubernetes change anatomy
- 17:47Release cycle explained
- 19:13Deprecation policy details
- 20:38Version skew policy
- 21:41Infrastructure changes risks
- 24:32Mirroring Kubernetes artifacts
- 25:36Preparing for breaking changes
- 28:26Feedback on changes
- 29:50Wrap-up and Q&A
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