Headwind MDM works on Tomcat 9 since it uses libraries existing in Tomcat 9 only. Unfortunately, Tomcat 10 has no backward compatibility, so the migration to Tomcat 10 and higher requires substantial code changes.
Whereas Tomcat 9 is currently being supported by Apache dev team, we understand that one day, sooner or later, it will stop receive security patches and will become outdated. Therefore, the migration to Tomcat 10 and higher is backlogged by the Headwind team. Once the technology stack will be updated, we will notify our users on the website.
We don't see any problems with using newer Java versions with Headwind MDM.