WordPress Version: 4.6
/**
* Alias of update_post_cache().
*
* @see update_post_cache() Posts and pages are the same, alias is intentional
*
* @since 1.5.1
* @deprecated 3.4.0 Use update_post_cache()
* @see update_post_cache()
*
* @param array $pages list of page objects
*/
function update_page_cache(&$pages)
{
_deprecated_function(__FUNCTION__, '3.4.0', 'update_post_cache()');
update_post_cache($pages);
}