Update doesn't seem to work via the Itch app. I tried uninstalling and reinstalling, and restarting the Itch app; it doesn't install. Here's the error I get:
Cannot read property "build" of undefined
There's a long stack-trace, but there doesn't seem to be a way to copy/paste it. I wonder, did you change the way you bundled the game compared to v1.0.1?