Everyone who has a Toast-R-Reflow model I or model II controller should obtain the latest firmware from GitHub and install it. The latest version for model I is 0.5, and for model II it's 1.2.
The change adds support for the AVR watchdog. The Toast-R-Reflow installed at The Hacker Dojo had some unknown event happen that wedged the controller with one of the elements switched on. This is obviously an undesirable outcome. It's unknown whether the watchdog would have been effective or not, but it certainly isn't effective if it isn't used.
If you are unsure how to update the firmware or have any questions, please feel free to contact me and I'll be happy to help. If you have no other way to apply this update, you can mail your controller back to me and I will apply it for you.