Masterpress 1.3.6 is a compatibility release. It resolves an edge case with shared fieldsets not working for MySQL 8 when the fieldset is limited to more than 1 post type or taxonomy or excluding any post types or taxonomies.
Gets the modified date of this post. If the format parameter is provided this will return a formatted date according to this string, otherwise a timestamp representing the modified date is returned.
The format string uses the same format as the PHP date function, with the same token extensions supported by the date_format.