- Added validation to ensure `log-flush-frequency` is a positive value, returning an error instead of causing a panic. ([#133540](https://github.com/kubernetes/kubernetes/pull/133540), [@BenTheElder](https://github.com/BenTheElder)) [SIG Architecture, Instrumentation, Network and Node]

			if err != nil {
				w.CloseWithError(err)
				return
			}
			if n != len(data) {
				w.CloseWithError(io.ErrShortWrite)
				return
			}
			err = v.EncodeMsg(mw)
			mw.Flush()
			w.CloseWithError(err)
		}()
		return r
	}

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrivesMap)
	globalLocalDrivesMu.RUnlock()

1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n\n.list-group-flush {\n  border-radius: 0;\n}\n\n.list-group-flush > .list-group-item {\n  border-width: 0 0 1px;\n}\n\n.list-group-flush > .list-group-item:last-child {\n  border-bottom-width: 0;\n}\n\n.list-group-item-primary {\n  color: #004085;\n  background-color: #b8daff;\n}\n\n.list-group-item-primary.list-group-item-action:hover,...

- Kube-proxy: remove deprecated --cleanup-ipvs flag of kube-proxy, and make --cleanup flag always to flush IPVS ([#97336](https://github.com/kubernetes/kubernetes/pull/97336), [@maaoBit](https://github.com/maaoBit)) [SIG Network]

- Kube-log-runner: Added the `-log-file-size` parameter to rotate log output into a new file once it reached a certain size. Introduced `-log-file-age` to enable automatic removal of old output files, and `-flush-interval` to support periodic flushing. ([#127667](https://github.com/kubernetes/kubernetes/pull/127667), [@zylxjtu](https://github.com/zylxjtu)) [SIG API Machinery, Apps, Architecture, Auth, Autoscaling, CLI, Cloud Provider, Cluster Lifecycle, Etcd,...

pkg bufio, method (*Writer) Buffered() int
pkg bufio, method (*Writer) Flush() error
pkg bufio, method (*Writer) Write([]uint8) (int, error)
pkg bufio, method (*Writer) WriteByte(uint8) error
pkg bufio, method (*Writer) WriteRune(int32) (int, error)
pkg bufio, method (*Writer) WriteString(string) (int, error)
pkg bufio, method (ReadWriter) Available() int
pkg bufio, method (ReadWriter) Flush() error
pkg bufio, method (ReadWriter) Peek(int) ([]uint8, error)

#### **IPVS**

*   You can now use the --cleanup-ipvs flag to tell kube-proxy whether to flush all existing ipvs rules in on startup ([#56036](https://github.com/kubernetes/kubernetes/pull/56036),[ @m1093782566](https://github.com/m1093782566))

1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n\n.list-group-flush {\n  border-radius: 0;\n}\n\n.list-group-flush > .list-group-item {\n  border-width: 0 0 1px;\n}\n\n.list-group-flush > .list-group-item:last-child {\n  border-bottom-width: 0;\n}\n\n.list-group-item-primary {\n  color: #004085;\n  background-color: #b8daff;\n}\n\n.list-group-item-primary.list-group-item-action:hover,...

ntal-xl>.list-group-item+.list-group-item{border-top-width:1px;border-left-width:0}.list-group-horizontal-xl>.list-group-item+.list-group-item.active{margin-left:-1px;border-left-width:1px}}.list-group-flush{border-radius:0}.list-group-flush>.list-group-item{border-width:0 0 1px}.list-group-flush>.list-group-item:last-child{border-bottom-width:0}.list-group-item-primary{color:#004085;background-color:#b8daff}.list-group-item-primary.list-group-item-action:focus,.list-group-item-primary.list-grou...

pkg net/http/httputil, type ProxyRequest struct, Out *http.Request #53002
pkg net/http/httputil, type ReverseProxy struct, Rewrite func(*ProxyRequest) #53002
pkg net/http, method (*ResponseController) Flush() error #54136
pkg net/http, method (*ResponseController) Hijack() (net.Conn, *bufio.ReadWriter, error) #54136
pkg net/http, method (*ResponseController) SetReadDeadline(time.Time) error #54136