- Users should not rely on unsupported CRON_TZ variable when specifying schedule, both the API server and cronjob controller will emit warnings pointing to https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/ containing explanation ([#106455](https://github.com/kubernetes/kubernetes/pull/106455), [@soltysh](https://github.com/soltysh)) [SIG Apps]...

- Fix a bug in cronjob controller where already created jobs may be missing from the status. ([#120649](https://github.com/kubernetes/kubernetes/pull/120649), [@andrewsykim](https://github.com/andrewsykim)) [SIG Apps]

- Add the `timezone` field to the cronjob describe output. ([#136663](https://github.com/kubernetes/kubernetes/pull/136663), [@kfess](https://github.com/kfess)) [SIG CLI]

- The following roles have had `Watch` added to them (prefixed with `system:controller:`):
  
  - `cronjob-controller`
  - `endpoint-controller`
  - `endpointslice-controller`
  - `endpointslicemirroring-controller`
  - `horizontal-pod-autoscaler`
  - `node-controller`
  - `pod-garbage-collector`

- This adds an optional `timeZone` field as part of the CronJob spec to support running cron jobs in a specific time zone. ([#108032](https://github.com/kubernetes/kubernetes/pull/108032), [@deejross](https://github.com/deejross))

  * 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.
  If you have existing PetSets, **you must perform extra migration steps** both

* `kubectl apply --prune` supports CronJob resources.  ([#62991](https://github.com/kubernetes/kubernetes/pull/62991), [@tomoe](https://github.com/tomoe))

* Job controller now respects ControllerRef to avoid fighting over Pods. ([#42176](https://github.com/kubernetes/kubernetes/pull/42176), [@enisoc](https://github.com/enisoc))

* CronJob controller now respects ControllerRef to avoid fighting with other controllers. ([#42177](https://github.com/kubernetes/kubernetes/pull/42177), [@enisoc](https://github.com/enisoc))

#### Cluster Autoscaling

* iptables proxier: route local traffic to LB IPs to service chain ([#77523](https://github.com/kubernetes/kubernetes/pull/77523), [@andrewsykim](https://github.com/andrewsykim))
* When the number of jobs exceeds 500, cronjob should schedule without error. ([#77475](https://github.com/kubernetes/kubernetes/pull/77475), [@liucimin](https://github.com/liucimin))

### Feature

- Added Timezone column in the output of the 'kubectl get cronjob' command.
   ([#122231](https://github.com/kubernetes/kubernetes/pull/122231), [@ardaguclu](https://github.com/ardaguclu))