Version 1.7.8 is a very minor update. For players with the full game, this adds some improvements to audio quality on Windows 7. This update is also available for the demo version which hasn't been patched in a long while. It now has all the latest fixes, etc that have been added to the full game.
INVERSUS Deluxe update for January 23, 2019
Patch Notes 1.7.8
View all patches · Build 3492527 · Last edited March 15, 2019 – 18:37:30 UTC by 
Wendy
Patchnotes via 
Steam Community