Of course, the main goal of an LTS version is the long term stability. LTS will be updated on a regular basis to include all the critical bugfix during 5 years.
In virtualization infrastructure security is critical, a lot can happens during 5 years. This is why we guarantee that meaningful security patches will be backported to XCP-ng 8.2 LTS.
Being able to upgrade your hardware without having to change the hypervisor you are using, drivers will be updated on a regulard basis and on a best effort policy in XCP-ng 8.2.