* ip-masq-agent is now on by default for GCE ([#47794](https://github.com/kubernetes/kubernetes/pull/47794), [@dnardo](https://github.com/dnardo))

  - ip-mask-agent addon starts to use the label `node.kubernetes.io/masq-agent-ds-ready` instead of `beta.kubernetes.io/masq-agent-ds-ready` as its node selector.

* Bump ip-masq-agent version to v2.3.0 to fix vulnerabilities ([#77833](https://github.com/kubernetes/kubernetes/pull/77833), [@anfernee](https://github.com/anfernee))

    * In 1.16, the masq-agent daemonset add-on will switch to using `node.kubernetes.io/masq-agent-ds-ready` as a node selector.
* Kubelet: replace `du` and `find` with a golang implementation ([#74675](https://github.com/kubernetes/kubernetes/pull/74675), [@dashpole](https://github.com/dashpole))

              No validation needed for status since it is updated by Calico.
            properties:
              agent:
                description: Agent holds agent status on the node.
                properties:
                  birdV4:
                    description: BIRDV4 represents the latest observed status of bird4.
                    properties:

    <magic priority="55">
      <match minShouldMatch="2">
        <match value="user-agent:" type="stringignorecase" offset="0"/>
        <match value="sitemap:" type="stringignorecase" offset="0"/>
        <match value="\nuser-agent:" type="stringignorecase" offset="0:1000"/>
        <match value="\nallow:" type="stringignorecase" offset="0:1000"/>

				// fields. We have already checked if any
				// are error-worthy so just ignore the rest.
				continue
			} else if http2asciiEqualFold(k, "user-agent") {
				// Match Go's http1 behavior: at most one
				// User-Agent. If set to nil or empty string,
				// then omit it. Otherwise if not mentioned,
				// include the default (below).
				didUA = true
				if len(vv) < 1 {
					continue

* addon-resizer flapping behavior was removed. ([#46850](https://github.com/kubernetes/kubernetes/pull/46850), [@x13n](https://github.com/x13n))
* Change default `httpGet` probe `User-Agent` to `kube-probe/<version major.minor>` if none specified, overriding the default Go `User-Agent`. ([#47729](https://github.com/kubernetes/kubernetes/pull/47729), [@paultyng](https://github.com/paultyng))

* Bump ip-masq-agent to v2.1.1 ([#67916](https://github.com/kubernetes/kubernetes/pull/67916), [@MrHohn](https://github.com/MrHohn))
    * - Update debian-iptables image for CVEs.
    * - Change chain name to IP-MASQ to be compatible with the
    * pre-injected masquerade rules.

	// Note the pod will be crashlooping, so this may take a few minutes to become fully functional based on when the retry occurs.
	// This requires no RBAC privilege, but will require the CNI agent to run as a privileged pod.
	RepairPods bool `protobuf:"varint,11,opt,name=repairPods,proto3" json:"repairPods,omitempty"`
	// No longer used.
	//