Note: Users who originally upgraded in the App Center and users who downloaded in the Developer Center should also use the App Center to upgrade again. Users of the Beta version should upgrade to the Doomsday version first and then upgrade to Phoenix. 5. Main update content: new default template HTML5CSS3 template brings you a cooler front-end experience. There is no need to go to the forum to download programs for background update programs. You only need to click on the background and the latest programs are at your fingertips. Fixed domain name configuration, sidebar management, rewriting calendar structure, modifying mobile access switch, plug-in page reconstruction, speeding up background