* Fix a scalability issue where high rates of event writes degraded etcd performance. ([#64539](https://github.com/kubernetes/kubernetes/pull/64539), [@ccding](https://github.com/ccding))
* fixes a memory leak in the kube-controller-manager observed when large numbers of pods with tolerations are created/deleted ([#65339](https://github.com/kubernetes/kubernetes/pull/65339), [@liggitt](https://github.com/liggitt))

				x2, ok := v2.XferStats[replication.MetricName(rm)]
				if !ok {
					x2 = replication.XferStats{}
				}
				x2.AvgRate += x.Avg
				x2.CurrRate += x.Curr
				if x.Peak > x2.PeakRate {
					x2.PeakRate = x.Peak
				}
				v2.XferStats[replication.MetricName(rm)] = x2
			}
			sm.Metrics[dID] = v2
		}
	}
	sm.Uptime = UTCNow().Unix() - globalBootTime.Unix()
	return sm, nil
}

* Allow setting the Host header in a httpGet probe ([#24292](https://github.com/kubernetes/kubernetes/pull/24292), [@errm](https://github.com/errm))
* Fix goroutine leak in ssh-tunnel healthcheck. ([#24487](https://github.com/kubernetes/kubernetes/pull/24487), [@cjcullen](https://github.com/cjcullen))

### Other (Cleanup or Flake)

- Updates konnectivity-network-proxy to v0.0.27. This includes a memory leak fix for the network proxy ([#107188](https://github.com/kubernetes/kubernetes/pull/107188), [@rata](https://github.com/rata)) [SIG API Machinery and Cloud Provider]

## Dependencies

### Added
_Nothing has changed._

- Fixes a kubelet and kube-apiserver memory leak in default 1.29 configurations related to tracing. ([#126984](https://github.com/kubernetes/kubernetes/pull/126984), [@dashpole](https://github.com/dashpole)) [SIG API Machinery and Node]

* Fixed CSI gRPC connection leak during volume operations. ([#64519](https://github.com/kubernetes/kubernetes/pull/64519), [@vladimirvivien](https://github.com/vladimirvivien))

- Fix memory leak in the job controller related to JobTrackingWithFinalizers ([#111722](https://github.com/kubernetes/kubernetes/pull/111722), [@alculquicondor](https://github.com/alculquicondor)) [SIG Apps]

- Fixed a bug where startupProbe stopped working after a container's first restart ([#101093](https://github.com/kubernetes/kubernetes/pull/101093), [@wzshiming](https://github.com/wzshiming)) [SIG Node]
- Fixed port-forward memory leak for long-running and heavily used connections. ([#99839](https://github.com/kubernetes/kubernetes/pull/99839), [@saschagrunert](https://github.com/saschagrunert)) [SIG API Machinery and Node]

- Fixes an issue in winkernel proxier that causes proxy rules to leak anytime service backends are modified. ([#112840](https://github.com/kubernetes/kubernetes/pull/112840), [@daschott](https://github.com/daschott)) [SIG Network and Windows]

## Changelog since v1.22.12

## Changes by Kind

### Bug or Regression

- Fix memory leak on kube-scheduler preemption ([#111805](https://github.com/kubernetes/kubernetes/pull/111805), [@amewayne](https://github.com/amewayne)) [SIG Scheduling]