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VERSIONING.md

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Versioning and Branching in controller-runtime

We follow the common KubeBuilder versioning guidelines, and use the corresponding tooling.

For the purposes of the aforementioned guidelines, controller-runtime counts as a "library project", but otherwise follows the guidelines exactly.

Compatibility and Release Support

For release branches, we generally tend to support backporting one (1) major release (release-{X-1} or release-0.{Y-1}), but may go back further if the need arises and is very pressing (e.g. security updates).

Dependency Support

Note the guidelines on dependency versions. Particularly:

  • We DO guarantee Kubernetes REST API compatibility -- if a given version of controller-runtime stops working with what should be a supported version of Kubernetes, this is almost certainly a bug.

  • We DO NOT guarantee any particular compatibility matrix between kubernetes library dependencies (client-go, apimachinery, etc); Such compatibility is infeasible due to the way those libraries are versioned.