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action is not described

in_theme_update_message-(theme_key) action-hook . WP 3.1.0

Fires at the end of the update message container in each row of the themes list table.

The dynamic portion of the hook name, $theme_key, refers to the theme slug as found in the WordPress.org themes repository.


add_action( 'in_theme_update_message-(theme_key)', 'action_function_name_2856', 10, 2 );
function action_function_name_2856( $theme, $response ){
	// action...
The WP_Theme object.

An array of metadata about the available theme update.

  • new_version(string)
    New theme version.

  • url(string)
    Theme URL.

  • package(string)
    Theme update package URL.


Since 3.1.0 Introduced.

Where the hook is called

wp-admin/includes/update.php 804
do_action( "in_theme_update_message-{$theme_key}", $theme, $response ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

Where in WP core the hook is used WordPress

Usage not found.