The issue which was preventing ArcaOS 5.1 upgrades from processing in the store has been corrected. If you find that you cannot upgrade your existing 5.0 license (whether or not you have an active Support & Maintenance subscription), please open a ticket and let us know.

Apologies for the inconvenience!

We are aware of an issue which is preventing ArcaOS 5.1 upgrades from processing in the store (new licenses are working correctly).

We are looking into the issue and hope to have it resolved soon.

Thanks for your patience, and for your business!