Everyone with an active FairSaaS or Box with Subscription license has access, and the download is in the usual location, Dropbox - Error - Simplify your life
And the file is Corona_1.5 RC1.exe, as I am sure you will gather
The changelog is over at https://forum.corona-renderer.com/index.php/topic,12436.msg85683 if you want to check in on what has been updated. Please test this as thoroughly as you can, we appreciate your help and feedback in ensuring that 1.5 is as stable as possible.
yes, some parameters are now system-wide, saved to a singular .conf instead of the .max file where they could be accessible by maxscript. I hope this isnt a big problem as I imagine people wanting to set the quality to the same value for all scenes