2012-07-19 Number of bug fixes and security enhancements . 5.3.16 2012-08-16 Number of bug fixes . 5.3.17 2012-09-13 Number of bug fixes . 5.4.0 2012-03-01 Trait Support, short array syntax support. Removed items: register_globals , safe_mode , allow_call_time_pass_reference , session_register() , session_unregister() and session_is_registered() . Built-in web server. [ 38 ]