- Added a `Stream` field to `PodLogOptions`, which allows clients to request certain log stream (stdout or stderr) of the container.

* Cleanup fluentd-gcp image: rebase on debian-base, switch to upstream packages, remove fluent-ui & rails ([#41998](https://github.com/kubernetes/kubernetes/pull/41998), [@timstclair](https://github.com/timstclair))

  <mime-type type="application/nss"/>
  <mime-type type="application/ocsp-request"/>
  <mime-type type="application/ocsp-response"/>

  <mime-type type="application/octet-stream">
    <magic priority="50">
      <match value="#\ This\ is\ a\ shell\ archive" type="string" offset="10"/>
      <match value="\037\036" type="string" offset="0"/>
      <match value="017437" type="host16" offset="0"/>

- Text logging in Kubernetes components now uses [textlogger](https://pkg.go.dev/k8s.io/klog/v2@v2.120.0/textlogger). The same split streams of info and error log entries with buffering of info entries is now also supported for text output (off by default, alpha feature). Previously, this was only supported for JSON. Performance is better also without split streams. ([#114672](https://github.com/kubernetes/kubernetes/pull/114672), [@pohly](https://github.com/pohly))

- Fixes high CPU usage in kubectl drain ([#95260](https://github.com/kubernetes/kubernetes/pull/95260), [@amandahla](https://github.com/amandahla)) [SIG CLI]
- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API Machinery]

* Fixed an issue ([#47800](https://github.com/kubernetes/kubernetes/pull/47800)) where `kubectl logs -f` failed with `unexpected stream type ""`. ([#50381](https://github.com/kubernetes/kubernetes/pull/50381), [@sczizzo](https://github.com/sczizzo))

- Implemented API streaming for the `watch-cache`
  
  When `sendInitialEvents` `ListOption` is set together with `watch=true`, it begins the watch stream with synthetic init events followed by a synthetic "Bookmark" after which the server continues streaming events. ([#110960](https://github.com/kubernetes/kubernetes/pull/110960), [@p0lyn0mial](https://github.com/p0lyn0mial))

* Get public IP for Azure vmss nodes. ([#68498](https://github.com/kubernetes/kubernetes/pull/68498), [@feiskyer](https://github.com/feiskyer))
* adjusted http/2 buffer sizes for apiservers to prevent starvation issues between concurrent streams ([#67902](https://github.com/kubernetes/kubernetes/pull/67902), [@liggitt](https://github.com/liggitt))

storage

// store : Radix Technologies Inc.
// https://www.iana.org/domains/root/db/store.html
store

// stream : dot Stream Limited
// https://www.iana.org/domains/root/db/stream.html
stream

// studio : Dog Beach, LLC
// https://www.iana.org/domains/root/db/studio.html
studio

// study : Registry Services, LLC

- Implemented API for streaming for the `etcd` store implementation.
  When `sendInitialEvents ListOption` is set together with `watch=true`, it begins the watch stream with synthetic init events followed by a synthetic `Bookmark`, after which the server continues streaming events. ([#119557](https://github.com/kubernetes/kubernetes/pull/119557), [@p0lyn0mial](https://github.com/p0lyn0mial))