Drafsight 2015 issues on the Mac

Hi, I've just upgraded to DS 1.6 on my macbook, and unfortunately it's not working as fine as 1.5.2 was. It's slower and has some UI issues, like menus suddenly disappearing.

It would be great if you allow users to still download previous versions while issues with the latest version are solved. Some of us need to keep working but didn't save the installer file for the previous version and can't downgrade. Can you provide a download of DS V1 R5.2?

I think it would also be nice for those using OSes no longer supported.