Server-side apply now considers `.spec.defaultBackend` to be an atomic struct.  This means that any field-owner who sets values in that struct (they are mutually exclusive) owns the whole struct. For almost all users this change has no impact; for controllers that want to change the default backend port from number to name (or vice-versa), this makes it easier. ([#126207](https://github.com/kubernetes/kubernetes/pull/126207), [@thockin](https://github.com/thockin))...

Kubernetes 1.8 caused the API server to accept a request with incorrect case and coerce it to correct case, but this behaviour has been fixed in 1.11 and the API server will once again be enforcing the correct case. It’s worth noting that during this time, the `kubectl` tool continued to enforce case-sensitive keys, so users that strictly manage resources with `kubectl` will be unaffected by this change. ([#65034](https://github.com/kubernetes/kubernetes/pull/65034), [@caesarxuchao](https://github.com/caesarxuchao))...

* Use "k8s.gcr.io" for container images rather than "gcr.io/google_containers".  This is just a redirect, for now, so should not impact anyone materially.   ([#54174](https://github.com/kubernetes/kubernetes/pull/54174), [@thockin](https://github.com/thockin))
    * Documentation and tools should all convert to the new name. Users should take note of this in case they see this new name in the system.

- CoreDNS is only officially supported on Linux at this time.  As such, when kubeadm is used to deploy this component into your kubernetes cluster, it will be restricted (using `nodeSelectors`) to run only on nodes with that operating system. This ensures that in clusters which include Windows nodes, the scheduler will not ever attempt to place CoreDNS pods on these machines, reducing setup latency...

,1)-1;break;case"week":a=t(this.year(),this.month(),this.date()-this.weekday()+7)-1;break;case"isoWeek":a=t(this.year(),this.month(),this.date()-(this.isoWeekday()-1)+7)-1;break;case"day":case"date":a=t(this.year(),this.month(),this.date()+1)-1;break;case"hour":a=this._d.valueOf(),a+=36e5-rt(a+(this._isUTC?0:6e4*this.utcOffset()),36e5)-1;break;case"minute":a=this._d.valueOf(),a+=6e4-rt(a,6e4)-1;break;case"second":a=this._d.valueOf(),a+=1e3-rt(a,1e3)-1;break}return this._d.setTime(a),M.updateOffs...

        setId_Terms(idList, opLambda);
    }

    @Deprecated
    public BsUserCQ addOrderBy_Id_Asc() {
        regOBA("_id");
        return this;
    }

    @Deprecated
    public BsUserCQ addOrderBy_Id_Desc() {
        regOBD("_id");
        return this;
    }

    public void setBusinessCategory_Equal(String businessCategory) {
        setBusinessCategory_Term(businessCategory, null);
    }

## Urgent Upgrade Notes

### (No, really, you MUST read this before you upgrade)

  Jobs that are tracked using this mechanism get the annotation `batch.kubernetes.io/job-tracking`. This is a temporary measure. Two releases after this feature graduates to beta, the annotation won't be added to Jobs anymore....

- New configuration...

machines and reports it as part of node metrics to heapster. This API call fails for VMware and VirtualBox virtualization environments. This issue is not present in bare metal Windows deployments, in Hyper-V, or on some of the popular public cloud providers.

*   If you run `kubectl get po` while the API server in unreachable, a misleading error is returned: `the server doesn't have a resource type "po"`. To work around this issue, specify the full resource name in the command instead...