一、以下链接为 官方下载 可以自行进行改版本号进行下载
版本号查看 https://download.whmcs.com/
下载
V8.4.1 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.4.1-release.1.zip
V8.3.2 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.3.2-release.1.zip
V8.2.1 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.2.1-release.1.zip
V8.1.3 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.1.3-release.1.zip
V8.1.2 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.1.2-release.1.zip
V8.1.1 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-8.1.1-release.1.zip
V7.10.3 https://s3.amazonaws.com/releases.whmcs.com/v2/pkgs/whmcs-7.10.3-release.1.zip
二、替换授权文件(License.php) 进行开心
路径为 \vendor\whmcs\whmcs-foundation\lib\
开心文件下载 (License.php)
License.rar