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.
WOOF :: slug()
Retrieves the slug for the current WordPress WOOF::object.
Note: this will only return meaningful results if the current object is a post or term (and the type / taxonomy is hierarchical respectively).