System requirements

Group-Office 6.6 has the following requirements in order to be officially supported:

Type Requirement
Operating System Linux / Docker
Webserver Apache 2.4.x+ / php-fpm or fastcgi
Database MySQL 5.7+ / MariaDB 10.0.5
Programming language PHP 7.2 - 7.4


Group-Office will run on Nginx, but we currently have no documentation on this.

PHP 8 support

Group-Office 6.6 is not officially supported with PHP8. We do backport PHP8 compatible code in the 6.6 branch when possible. The community version may run fine, but the paid modules probably won’t.

Required PHP Extensions

  • pcre
  • mbstring
  • ctype
  • date
  • iconv
  • curl
  • zip
  • soap
  • gd
  • pdo
  • pdo_mysql (With mysqlnd, nd_pdo_mysql)
  • mysqlnd
  • calendar


  • acpu (for better caching performance)
  • ioncube (For professional version with Intermesh support)


The install procedure will warn you if any of these modules is missing.