When the feature gate is enabled, kubelet ignores errors that happens during setting the following sysctl values: `vm.overcommit_memory`, `vm.panic_on_oom`, `kernel.panic`, `kernel.panic_on_oops`, `kernel.keys.root_maxkeys`, `kernel.keys.root_maxbytes`. (These sysctl values for the host, not for the containers)
  
  kubelet also ignores an error during opening `/dev/kmsg`.

### **Other notable changes**

#### Admission plugin
* OwnerReferencesPermissionEnforcement admission plugin ignores pods/status. ([#45747](https://github.com/kubernetes/kubernetes/pull/45747), [@derekwaynecarr](https://github.com/derekwaynecarr))


* Ignored mirror pods in PodPreset admission plugin. ([#45958](https://github.com/kubernetes/kubernetes/pull/45958), [@k82cn](https://github.com/k82cn))

  In addition, when this feature is enabled, the 'details' field of 'Status' from the LIST response
  includes information that identifies the corrupt object(s).
  NOTE: unsafe deletion ignores finalizer constraints, and skips precondition checks.
  WARNING: this may break the workload associated with the resource being unsafe-deleted, if it relies on

- Fix: consolidate logs for instance not found error (#105364, @nilo19) [SIG Cloud Provider]
- Fix: ignore not a VMSS error for VMAS nodes in EnsureBackendPoolDeleted. (#105404, @ialidzhikov) [SIG Cloud Provider]
- Fix: ignore the case when updating Azure tags (#104687, @nilo19) [SIG Cloud Provider]

- Ignore `not a vmss instance` error for VMAS nodes in `EnsureBackendPoolDeleted`. ([#105185](https://github.com/kubernetes/kubernetes/pull/105185), [@ialidzhikov](https://github.com/ialidzhikov))
- Ignore the case when comparing azure tags in service annotation. ([#104705](https://github.com/kubernetes/kubernetes/pull/104705), [@nilo19](https://github.com/nilo19))

* MAC Address filter has been fixed in vSphere Cloud Provider, it no longer ignores `00:1c:14` and `00:05:69` prefixes ([#73721](https://github.com/kubernetes/kubernetes/pull/73721), [@frapposelli](https://github.com/frapposelli))

* MAC Address filter has been fixed in vSphere Cloud Provider, it no longer ignores `00:1c:14` and `00:05:69` prefixes ([#73721](https://github.com/kubernetes/kubernetes/pull/73721), [@frapposelli](https://github.com/frapposelli))



# v1.13.3

[Documentation](https://docs.k8s.io)

* New kubeadm flag `--ignore-preflight-errors` that enables to decrease severity of each individual error to warning. ([#56072](https://github.com/kubernetes/kubernetes/pull/56072), [@kad](https://github.com/kad))
    * Old flag `--skip-preflight-checks` is marked as deprecated and acts as `--ignore-preflight-errors=all`

* Switch to instance-level update APIs for Azure VMSS loadbalancer operations ([#76656](https://github.com/kubernetes/kubernetes/pull/76656), [@feiskyer](https://github.com/feiskyer))
* kubeadm: kubeadm alpha cert renew now ignores certificates signed by external CAs ([#76865](https://github.com/kubernetes/kubernetes/pull/76865), [@fabriziopandini](https://github.com/fabriziopandini))

- The `StructuredAuthenticationConfiguration` feature is now beta and enabled. ([#123719](https://github.com/kubernetes/kubernetes/pull/123719), [@enj](https://github.com/enj))
- The `kube_codegen` tool now ignores the vendor folder during code generation.
   ([#122729](https://github.com/kubernetes/kubernetes/pull/122729), [@jparrill](https://github.com/jparrill))