The supported version is the latest commit in the stable, and main branch.
If you want talk about a bug, vulnerability, or feature please make sure that you are on the latest release, beause maybe the issue has already been resolved or the feature has been added.
XanvicOS is just a hobby project. I try to fix all the bugs, but sometimes I don't discover some.
XanvicOS isn't being developed by a multi billion dollar company, but just by a student during his free time.
By using XanvicOS in a not controlled enviroment (like a VM) you basically accept the fact that by using it you are exposing yourself to some security risks.
If you find any, please report them. You'll help us.