* federation: Adding secret API ([#29138](https://github.com/kubernetes/kubernetes/pull/29138), [@kshafiee](https://github.com/kshafiee))
* Introducing ScheduledJobs as described in [the proposal](docs/proposals/scheduledjob.md) as part of `batch/v2alpha1` version (experimental feature). ([#25816](https://github.com/kubernetes/kubernetes/pull/25816), [@soltysh](https://github.com/soltysh))

    If you do not, you risk allowing unauthorized users to access your federation apiserver.
  * You do not need to adjust this flag on Kubelet:  there was no authorization for the Kubelet APIs in 1.4.
* batch/v2alpha1.ScheduledJob has been renamed, use batch/v2alpha1.CronJob instead ([#36021](https://github.com/kubernetes/kubernetes/pull/36021), [@soltysh](https://github.com/soltysh))
* PetSet has been renamed to StatefulSet.

        ScheduledJobCQ mustQuery = new ScheduledJobCQ();
        ScheduledJobCQ shouldQuery = new ScheduledJobCQ();
        ScheduledJobCQ mustNotQuery = new ScheduledJobCQ();
        ScheduledJobCQ filterQuery = new ScheduledJobCQ();
        boolLambda.callback(mustQuery, shouldQuery, mustNotQuery, filterQuery);