To promote better security, we plan to move to Smarty 4, which is not compatible with SmartyBC, in the near future. If you use certain Smarty tags, you must remove them now.
Troubleshoot and resolve A license key is required. errors during installation.
You can adjust the login session length for admins and users. WHMCS will automatically end login sessions after the set period of inactivity.
Troubleshoot and resolve users logging out while downloading invoices.
Troubleshoot and resolve Unable to find the socket transport errors while using Nominet for domain registrations.
Troubleshoot and resolve warnings about the OPcache PHP extension.
Troubleshoot and resolve PHP Fatal error: Maximum execution time of 300 seconds exceeded in /path/to/file.php errors in WHMCS.