Changelog:WHMCS V8.1.2
From WHMCS Documentation
Maintenance
CORE-16265 - Correct import of replies to tickets not associated with a client
CORE-16266 - Ensure empty optional custom fields are provided to provisioning module functions
CORE-16300 - Improve environment support for custom field key comparison
Modules
MODULE-7559 - Correct API value of package for DirectAdmin
MODULE-7591 - Prevent erroneous validation error for manual invoice payment