For how long is the Kubernetes API guaranteed to be backward compatible following a release?

For how long is the Kubernetes API guaranteed to be backward compatible following a release?

• A. 6 months
• B. 2 years
• C. 3 months
• D. 1 year

Answer: (D)

APIs in Kubernetes are kept backward compatible for at least one year after a release. This window lets you upgrade clusters and adjust manifests without breaking existing workloads, giving you time to migrate to newer API versions as older ones are deprecated. Deprecation notices appear before removals, so you can plan changes rather than be surprised by sudden failures. The idea is to minimize upgrade risk by preserving API behavior for a full year. Shorter timeframes would increase disruption during upgrades, while much longer periods aren’t the standard practice.

APIs in Kubernetes are kept backward compatible for at least one year after a release. This window lets you upgrade clusters and adjust manifests without breaking existing workloads, giving you time to migrate to newer API versions as older ones are deprecated. Deprecation notices appear before removals, so you can plan changes rather than be surprised by sudden failures. The idea is to minimize upgrade risk by preserving API behavior for a full year. Shorter timeframes would increase disruption during upgrades, while much longer periods aren’t the standard practice.