Where is New Engine Version?
Viewing post in Boll Deluxe (beta) comments
Calling these download links "Old Version" is kind of misleading. It implies there's a better version out there somewhere. As of now 2.1.5.2 is the most recent release and the one you should play. The devs are currently working on creating a sequel in a new engine, which you can learn about on their discord.
https://discord.gg/DfZYkFTa6T