Ok, so I discovered that the Windows versions doesn't run properly on Windows 7, so this update fixes that. Unfortunately, it means I have to bundle everything in the build (like I do for the Linux and Mac versions) so it's quite a bit larger (150mb instead of 10mb!) but this is just a one-time thing. Future updates will continue to be small. :-)
Update 1.0.1
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.