PHP License Update: Simplifying a Legacy of Confusion

After years of licensing confusion and disagreements, this RFC proposes a pragmatic solution for PHP. It suggests unifying the PHP License and Zend Engine License under the Modified BSD License (BSD-3-Clause), ensuring compatibility with GPL and resolving long-standing issues with OSI approval and compatibility. This change maintains existing user and contributor rights, addressing conflicts with distributions like Debian. PHP 9.0.0 will fully adopt this simplified license.