## Before Upgrading

* When Response is a `metav1.Status`, it is no longer copied into the audit.Event status. Only the "status", "reason" and "code" fields are set.  For example, when we run `kubectl get pods abc`, the API Server returns a status object:

  The API Server will no longer proxy non-101 responses for upgrade requests. This could break proxied backends (such as an extension API server) that respond to upgrade requests with a non-101 response code. ([#92941](https://github.com/kubernetes/kubernetes/pull/92941), [@tallclair](https://github.com/tallclair)) [SIG API Machinery]
 
## Changes by Kind

### Bug or Regression

### API Change

- A new field `omitManagedFields` has been added to both `audit.Policy` and `audit.PolicyRule` 
  so cluster operators can opt in to omit managed fields of the request and response bodies from 
  being written to the API audit log. ([#94986](https://github.com/kubernetes/kubernetes/pull/94986), [@tkashem](https://github.com/tkashem)) [SIG API Machinery, Auth, Cloud Provider and Testing]

- Added `apiserver_watch_list_duration_seconds` metrics which will measure response latency distribution in seconds for watchlist requests broken by group, version, resource and scope. ([#120490](https://github.com/kubernetes/kubernetes/pull/120490), [@p0lyn0mial](https://github.com/p0lyn0mial))

  The API Server will no longer proxy non-101 responses for upgrade requests. This could break proxied backends (such as an extension API server) that respond to upgrade requests with a non-101 response code. ([#92941](https://github.com/kubernetes/kubernetes/pull/92941), [@tallclair](https://github.com/tallclair)) [SIG API Machinery]
 
## Changes by Kind

### API Change

### Bug or Regression

- Fixed API response for `StorageClassList` queries to return a graceful error message, if the provided `ResourceVersion` is too large. ([#132374](https://github.com/kubernetes/kubernetes/pull/132374), [@PatrickLaabs](https://github.com/PatrickLaabs)) [SIG API Machinery...

* This fix prevents a GCE PD volume from being mounted if the udev device link is stale and tries to correct the link....

- Kube-proxy service health returns http header `X-Load-Balancing-Endpoint-Weight` with number of local endpoints. The same information is still available in response body JSON `payload.LocalEndpoints`. ([#118999](https://github.com/kubernetes/kubernetes/pull/118999), [@cezarygerard](https://github.com/cezarygerard))

```

Check if event notification is successfully configured by

```
mc event list myminio/images
```

You should get a response like this

```
arn:minio:sqs::1:webhook   s3:ObjectCreated:*   Filter: suffix=".jpg"
```

### Step 3: Test with Thumbnailer