* Fixes an issue where `hack/local-up-cluster.sh` would fail on the API server start with ([#38898](https://github.com/kubernetes/kubernetes/pull/38898), [@deads2k](https://github.com/deads2k))
    * !!! [1215 15:42:56] Timed out waiting for apiserver:  to answer at https://localhost:6443/version; tried 10 waiting 1 between each

- Kubeadm: bumped the timeout of the `kubeadm upgrade` `CreateJob` preflight check to 1 minute. This allows Windows worker nodes to have more time to run the preflight check. It uses the `pause` image, so if you are experiencing slow pull times, you can either pre-pull the new pause on the work using `kubeadm config images pull --kubernetes-version TARGET` or skip the preflight check with `--ignore-preflight-errors`. ([#136273](https://git...

    /** The key of the message: Crawler Start Time */
    public static final String LABELS_crawling_info_CrawlerStartTime = "{labels.crawling_info_CrawlerStartTime}";

    /** The key of the message: Crawler End Time */
    public static final String LABELS_crawling_info_CrawlerEndTime = "{labels.crawling_info_CrawlerEndTime}";

    /** The key of the message: Crawler Execution Time */

### Feature

- Kubeadm: generate CA certificates with a start time that is offset 5 minutes in the past relative to the current system time to workaround cases of clock desync.

### Feature

- Kubeadm: generate CA certificates with a start time that is offset 5 minutes in the past relative to the current system time to workaround cases of clock desync.

- Adds two new metrics to cronjobs, a histogram to track the time difference when a job is created and the expected time when it should be created, as well as a gauge for the missed schedules of a cronjob ([#99341](https://github.com/kubernetes/kubernetes/pull/99341), [@alaypatel07](https://github.com/alaypatel07))

- `client-go`, using log level 9, traces the following events of a HTTP request:
      - DNS lookup
      - TCP dialing
      - TLS handshake
      - Time to get a connection from the pool
      - Time to process a request ([#105156](https://github.com/kubernetes/kubernetes/pull/105156), [@aojea](https://github.com/aojea))

### Documentation

- EndpointSlice Mirroring controller now cleans up managed EndpointSlices when a Service selector is added (#106136, @robscott) [SIG Apps, Network and Testing]
- Fix concurrent map access causing panics when logging timed-out API calls. (#106124, @marseel) [SIG API Machinery]
- Support more than 100 disk mounts on Windows (#105673, @andyzhangx) [SIG Storage and Windows]

## Dependencies

### Added
_Nothing has changed._

Russ Cox <******@****.***> 1511973652 -0500

Joe Tsai <******@****.***> 1503947278 -0700