The Kunena team has announce the arrival of Kunena 220.127.116.11 [K 18.104.22.168] which is now available for download as a native Joomla extension for J! 4.2.x. This version addresses most of the issues that were discovered in K 6.0 and issues discovered during the development stages of K 6.0.
This is for users to help other users, to discuss topics that are related to forum administration in general or problems in running Joomla. This is not the place to ask for Joomla support. If you want assistance with Joomla please ask at
new - possible to create url forum.website.com?
The issue with subdomains are that cookies are not passed between your main site and forum -> user gets "logged out" when he makes the switch. This is actually security feature in browsers and cannot easily be worked out..
Otherwise it's possible with some tricks, but needs some custom coding.
Having Kunena in own window and without Joomla template is possible by assigning minimal template to all Kunena menu items. Opening it in a new window -- I'm not sure how to do it, but I think it should be possible.