This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_maybe_update_themes()

Check themes versions only after a duration of time.

Description

This is for performance reasons to make sure that on the theme version checker is not run on every page load.

Source

File: wp-includes/update.php 

function _maybe_update_themes() {
	$current = get_site_transient( 'update_themes' );
	if ( isset( $current->last_checked ) && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) )
		return;
	wp_update_themes();
}

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Related

Uses

Uses
Uses Description
wp-includes/option.php: get_site_transient()

Get the value of a site transient.
wp-includes/update.php: wp_update_themes()

Check theme versions against the latest versions hosted on WordPress.org.

Changelog

Changelog
Version Description
WP-2.7.0 Introduced.