4.0.3.1 version is an old version
As for v4.3.0.1, be patient only just out.
Release Notes | LearnDash
Release Notes - Stay up to date with all of the latest changes, features, security fixes, and more with our release notes for LearnDash LMS.www.learndash.com
Update: 4.3.0.1 - Original Version
Bugfix- Fixed [student] shortcode not accepting user ID parameter
- Fixed protecting file downloads in LearnDash upload directory
- Fixed importing exported files error on Windows 10