function is not described

wp_update_plugin() │ WP 2.5.0

Deprecated since 3.7.0. It is no longer supported and may be removed in future releases. Use Plugin_Upgrader instead.

This was once used to kick-off the Plugin Updater.

Deprecated in favor of instantiating a Plugin_Upgrader instance directly, and calling the 'upgrade' method. Unused since 2.8.0.

No Hooks.

Returns

null. Nothing (null).

Usage

wp_update_plugin( $plugin, $feedback );

$plugin(required): .
$feedback: .
Default: ''

Notes

See: Plugin_Upgrader

Changelog

Since 2.5.0	Introduced.
Deprecated since 3.7.0	Use Plugin_Upgrader

`wp_update_plugin() wp update plugin` code ^{WP 6.9}

wp-admin/includes/deprecated.php

function wp_update_plugin($plugin, $feedback = '') {
	_deprecated_function( __FUNCTION__, '3.7.0', 'new Plugin_Upgrader();' );

	if ( !empty($feedback) )
		add_filter('update_feedback', $feedback);

	require ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
	$upgrader = new Plugin_Upgrader();
	return $upgrader->upgrade($plugin);
}