For Android, you can get our beta app by joining our public Android Insiders group. For iOS, you'll first need to install TestFlight on your iOS device. You can find it here or in the App Store. Once TestFlight is installed, you can join from your device. You'll then be able to download and install our beta app via TestFlight.

What is Teredo? Select games like Forza Horizon 3 and 4 use a networking protocol called Teredo for multiplayer gaming on the Xbox network. Teredo is a networking protocol that’s used to establish communications between clients and servers, and to facilitate connectivity between devices behind routers that use network address translation (NAT).

如果使用的是 iOS，需要先在 iOS 设备上安装 TestFlight。 可以在 此处 或在 App Store 中找到它。 安装 TestFlight 后，您可以 从您的设备加入。 然后，你将能够通过 TestFlight 下载和安装我们的 beta 应用。

Check the Xbox services, games, and apps for any service outages.

Good news everyone! You can apply to the Microsoft Insider's program to test our pre-release builds. Follow this link to join the program. Thanks for your help and hopefully you'll enjoy some of our features before the public receives them! Because we have limited spots, it might take some time for you to get an invitation. But as soon as there are some available, we'll be sending you a message.

The Xbox Offline System Update (OSU) process allows you to update your console by downloading a file to a USB flash drive and then installing that file directly onto your Xbox Series X|S or Xbox One console.

Xbox Support ... Xbox Support

若是 iOS，您必須先在 iOS 裝置上安裝 TestFlight。 您可以在 這裡 或在 App Store 中找到它。 安裝 TestFlight 之後，您就可以 從您的裝置加入。 然後，您就可以透過 TestFlight 下載並安裝我們的 Beta 應用程式。

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

若是 iOS，您必須先在 iOS 裝置上安裝 TestFlight。 您可以在 這裡 或在 App Store 中找到它。 安裝 TestFlight 之後，您就可以 從您的裝置加入。 然後，您就可以透過 TestFlight 下載並安裝我們的 Beta 應用程式。