do_action( 'muplugins_loaded' ) Fires once all must-use and network-activated plugins have loaded. ContentsDescription Source Changelog User Contributed Notes Description #Description Source #Source File: wp-settings.php View on Trac Top ↑Changelog #Changelog Changelog Version Description 2.8.0 Introduced. Top ↑User Contributed Notes #User Contributed Notes You must log in before being able to contribute a note or feedback.