• IMPROVED: updated swagger-ui to version 3.21.0
• FIXED: implicit ref_name collisions will now throw an exception
• FIXED: RecursiveField will now also work as a child of ListSerializer (#321)
• FIXED: fixed minLength and maxLength for ListSerializer and ListField
• FIXED: the items property of Schema, Parameter and Items objects was renamed to items_; this is a mildly breaking change and was needed to fix the collision with the items method of dict (#308)
• REMOVED: the get_summary and get_description methods have been removed (previously deprecated in 1.12.0)