* Promotes Source IP preservation for Virtual IPs to GA. ([#41162](https://github.com/kubernetes/kubernetes/pull/41162), [@MrHohn](https://github.com/MrHohn))
    * Two api fields are defined correspondingly:

* Fix a bug in server printer that could cause kube-apiserver to panic. ([#79349](https://github.com/kubernetes/kubernetes/pull/79349), [@roycaihw](https://github.com/roycaihw))
* Fix a bug in the IPVS proxier where virtual servers are not cleaned up even though the corresponding Service object was deleted. ([#80942](https://github.com/kubernetes/kubernetes/pull/80942), [@gongguan](https://github.com/gongguan))

* Atom Hydrogen veya Visual Studio Code Jupyter gibi uzantılarla uzaktan veya Docker içi geliştirme için **Jupyter Çekirdekleri** ile kolay Python entegrasyonu.
* **Vue** ile frontend:
    * Vue CLI ile oluşturulmuş.
    * Dahili **JWT kimlik doğrulama**.

* Einfache Python-Integration mit **Jupyter-Kerneln** für Remote- oder In-Docker-Entwicklung mit Erweiterungen wie Atom Hydrogen oder Visual Studio Code Jupyter.
* **Vue**-Frontend:
    * Mit Vue CLI generiert.
    * Handhabung der **JWT-Authentifizierung**.
    * Login-View.
    * Nach der Anmeldung Hauptansicht des Dashboards.

      /*
       * FinalizableReference's class loader was reclaimed. While there's a chance that other
       * finalizable references could be enqueued subsequently (at which point the class loader
       * would be resurrected by virtue of us having a strong reference to it), we should pretty
       * much just shut down and make sure we don't keep it alive any longer than necessary.
       */
      return null;
    }
    try {

* Простая интеграция Python с **Jupyter Kernels** для разработки удалённо или в Docker с расширениями похожими на Atom Hydrogen или Visual Studio Code Jupyter.
* Фронтенд построен на фреймворке **Vue**:
    * Сгенерирован с помощью Vue CLI.
    * Поддерживает **аутентификацию с помощью JWT-токенов**.
    * Страница логина.

* Intégration Python facile avec **Jupyter Kernels** pour le développement à distance ou intra-Docker avec des extensions comme Atom Hydrogen ou Visual Studio Code Jupyter.
* Frontend **Vue** :
    * Généré avec Vue CLI.
    * Gestion de l'**Authentification JWT**.
    * Page de connexion.
    * Après la connexion, page de tableau de bord principal.

* Fácil integração com Python através dos **Kernels Jupyter** para desenvolvimento remoto ou no Docker com extensões como Atom Hydrogen ou Visual Studio Code Jupyter.
* _Frontend_ **Vue**:
    * Gerado com Vue CLI.
    * Controle de **Autenticação JWT**.
    * Visualização de _login_.
    * Após o _login_, visualização do painel de controle principal.

list of known issues reported in Kubernetes 1.9 release. The content is populated from the [v1.9.x known issues and FAQ accumulator] [#57159](https://github.com/kubernetes/kubernetes/issues/57159).

*   If you are adding Windows Server Virtual Machines as nodes to your Kubernetes environment, there is a compatibility issue with certain virtualization products. Specifically the Windows version of the kubelet.exe calls `GetPhysicallyInstalledSystemMemory` to get the physical memory installed...

* sysctl support is now considered beta ([ref](https://github.com/kubernetes/enhancements/issues/34))
* Support for Azure Virtual Machine Scale Sets is now considered beta. ([ref](https://github.com/kubernetes/enhancements/issues/513))
* Azure support for Cluster Autoscaler is now considered beta. ([ref](https://github.com/kubernetes/enhancements/issues/514))