What happens to my ArcaOS 5.0 subscription downloads after I upgrade to ArcaOS 5.1?

If you have only one current Support & Maintenance subscription for ArcaOS 5.0, and you upgrade that license to ArcaOS 5.1, whatever remaining time on your ArcaOS 5.0 subscription will be added to your ArcaOS 5.1 Support & Maintenance subscription, and your ArcaOS 5.0 subscription will be terminated as of the date of the upgrade. Here’s why:

Upgrading an ArcaOS license from 5.0 to 5.1 implies that the installed copy of ArcaOS 5.0 will be upgraded to the new 5.1 license. It is a violation of license terms to continue using the ArcaOS 5.0 license when it has been upgraded to 5.1. Thus, there are no more subscription downloads available for the (now upgraded) ArcaOS 5.0 license.

If you need to continue using ArcaOS 5.0 on one or more systems, but wish to install ArcaOS 5.1 on another system (or partition), you must purchase a new ArcaOS 5.1 license. This will allow your existing ArcaOS 5.0 Support & Maintenance subscription to remain in force, with associated downloads available for that version and provide you with a separate Support & Maintenance subscription for the new ArcaOS 5.1 license, which has separate (and different) subscription downloads available.