Thank you for your message.
Server 3.0 is not compatible from the previous version 2.x.
That's wrong. When you install the server it migrates all the server settings from 2.x.x.x to 3.x.x.x. And it even supports connections from 6.x.x.x clients (here client means "client-server" architecture, so clients can be Viewers and Hosts.
Please, do not mislead other users.
The 7.x client is not compatible with the 6.x license and the free license cannot be upgraded
No, it is not compatible. Why should it? We have our upgrade policy, we must separate 6.x.x.x users from 7.x.x.x. Besides, the new key format was necessary for implementing a new license key management system in RU Server.
Free license just needs to be generated anew using this form https://www.remoteutilities.com/support/free.php
. We are not taking the right to use the free license from anyone.
When I try to request a new one, the old 6.x version comes
This is also wrong. I personally tested the free license generation form immediately after the new release yesterday . And I've just tested it too. It works, generates and sends a key.rlicense file via email which is the license file for the new version.
Do I understand correctly that lifetime free license ends version 6.x?
No. You can generate a free license for version 7 and use it. If for some reason you still like version 6 you can keep using it too by the way (with the 6.x.x.x key, of course).
For example, our paid customers who upgrade to version 7 will be able to keep their version 6 keys and use them, so they remain valid (not blacklisted). That is to ensure smooth transition from version 6 to version 7 in case there are hundreds of remote pcs. A customer may generate their 7 key now and actually upgrade only later, so we understand that.