1. Filleting around corners
2. Larger HDMI hole so it doesn't pull out as easy
3. Pi Zero pulled further back into case. Only SD card is exposed now. Previous version had a part of the Pi Zero board exposed.

I will be moving the files to Thingiverse. However, it won't let me publish for 24 hours after creating a new account. In the mean time I've attached the files to this project.