### Documentation

* Avoid unnecessary spam in kube-controller-manager log if --cluster-cidr is not specified and --allocate-node-cidrs is false. ([#54934](https://github.com/kubernetes/kubernetes/pull/54934), [@akosiaris](https://github.com/akosiaris))

- Node `ipam` controller now exposes metrics `cidrset_cidrs_max_total` and `multicidrset_cidrs_max_total` with information about the max number of CIDRs that can be allocated. ([#112260](https://github.com/kubernetes/kubernetes/pull/112260), [@aryan9600](https://github.com/aryan9600))

* Fix overlay2 container disk metrics for Docker and CRI-O ([#54827](https://github.com/kubernetes/kubernetes/pull/54827), [@dashpole](https://github.com/dashpole))
* API machinery's httpstream/spdy calls now support CIDR notation for NO_PROXY ([#54413](https://github.com/kubernetes/kubernetes/pull/54413), [@kad](https://github.com/kad))

    * --application_metrics_count_limit
    * --boot_id_file
    * --container_hints

- Use NLB Subnet CIDRs instead of VPC CIDRs in Health Check SG Rules ([#93515](https://github.com/kubernetes/kubernetes/pull/93515), [@t0rr3sp3dr0](https://github.com/t0rr3sp3dr0)) [SIG Cloud Provider]

### Other (Cleanup or Flake)

- KEP-1880: Users of the new feature to add multiple service CIDR will use by default a dual-write strategy on the new ClusterIP allocators to avoid the problem of possible duplicate IPs allocated to Services when running skewed kube-apiservers using different allocators. They can opt-out of this behavior by enabled...

- Specific error message on failed rolling update issued by older kubectl against 1.4 master ([#32751](https://github.com/kubernetes/kubernetes/issues/32751))
- bump master cidr range from /30 to /29 ([#32886](https://github.com/kubernetes/kubernetes/issues/32886))
- non-hostNetwork daemonsets will almost always have a pod that fails to schedule ([#32900](https://github.com/kubernetes/kubernetes/issues/32900))

## Changelog since v1.5.0-alpha.1

### Action Required

* Deprecate the --reconcile-cidr kubelet flag because it has no function anymore ([#35523](https://github.com/kubernetes/kubernetes/pull/35523), [@luxas](https://github.com/luxas))

  * Add ip-masq-agent addon to the addons folder which is used in GCE if `--non-masquerade-cidr` is set to 0/0 ([#46038](https://github.com/kubernetes/kubernetes/pull/46038), [@dnardo](https://github.com/dnardo))