I assume the v2.0.3 is probably just some bug fixes and they forgot to list them. My guess would be a fix for animations not unlocking in the galleryI dont understand. This version listed here on F95 appears to be v2.0.1 - both the file and the OP confirms this.
However the itchi.io site lists changelog notes for v2.0.3, which appear to be identical to those listed here on F95, for v2.0.1.
I am confused. I like the take on thePixel/H Phasmo, but is the paid version on the creators itch.io even any different to this one? Hard to tell, when both versions there and here, appear to have same patch notes.