Having just written all that, you may be OK.

https://sourceforge.net/projects/sweeth ... eetHome3D/

Shows a 7.6 for Mac and Win (no Linux?!?!) that is not announced on the blog or in the forum that was pushed on the 11th. (As an IT professional I still wouldn't trust this until there was some form of announcement in case there had been some compromise of the Sourceforge account - it happens.)

However, if Space Mushrooms are sending e-mail links to directly download applications then they must stop this. It is a very bad practice to teach people.