- >*NOTE:*
- v4.x will be PHP-8 only, v3.x continues PHP-7 support
-
- * PHP 8 compatibility
- - Drop ext-propro support
- PHP 8 removes the object get/set API from the ZendEngine, which renders
- that extension dysfunctional. As a consequence, the header property of
- http\Message and derived classes cannot be modified in place, and thus
- by reference.