The licenses purchased at our store are permanent for all versions released within 12 months from the purchase date. Further updates are paid (and optional).
So you can download and install all versions that we released up to one year from the day you purchased the license.
To access your product keys, download links, manage activations and renew maintenance please go to
https://www.radiantviewer.com/store/mylicenses/
Please sign in with the email address used when purchasing licenses.