wp-admin/includes/class-plugin-upgrader.php:562Deactivates a plugin before it is upgraded.
$responsebool|WP_Error$pluginarraybool|WP_Error public function deactivate_plugin_before_upgrade( $response, $plugin ) { if ( is_wp_error( $response ) ) { // Bypass. return $response; } // When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it. if ( wp_doing_cron() ) { return $response; } $plugin = $plugin['plugin'] ?? ''; if ( empty( $plugin ) ) { return new WP_Error( 'bad_request', $this->strings['bad_request'] ); } if ( is_plugin_active( $plugin ) ) { // Deactivate the plugin silently, Prevent deactivation hooks from running. deactivate_plugins( $plugin, true ); } return $response; }Introduced in 2.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-plugin-upgrader.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.