也许是要升级应用程序；也许是完全更改它们。
Maybe applications are being upgraded; maybe they're being changed completely.
此外，拥有长寿命的证书让升级应用程序更为容易。
Also, having long-lived certificates makes your life easy when upgrading your applications.
说明支援及升级应用程序和元件的方法。
Discusses ways to support and upgrade applications and components.
应用推荐