Production readiness reviews are intended to ensure that features merging into Kubernetes are observable, scalable and supportable, can be safely operated in production environments, and can be disabled or rolled back in the event they cause increased failures in production.
More details may be found in the PRR KEP.
As of 1.19, production readiness reviews are required, and are part of the KEP process. The PRR questionnaire previously found here has been incorporated into the KEP template. The template details the specific questions that must be answered, depending on the stage of the feature. As of 1.19, PRRs are non-blocking; that is, approval is not required for the enhancement to be part of the release. This is to provide some time for the community to adapt to the process.
Note that some of the questions should be answered in both the KEP's README.md
and the kep.yaml, in order to support automated checks on the PRR. The
template points out these as needed.