Any save from v1.0.4 should be 100% compatible.
New Feature:
-Speedrun Clock: Off by default. You can use this to easily keep track of the time when you're trying to get the speedrunning hats.
Fixes/Changes:
-Changed the wording of the speedrunning hats a bit to make it clear that you can unlock the hats before defeating the bosses.
-Condensed the "Show Player Score" and the "Score Fade" options into a singular option, since there's no reason to enable score fade if the score bar is not on.
-Updated the ZForms library to the latest commit, which is used for the Hat Menu. Also updated some code in the Hat Menu to work with the latest commit. (Didn't fix that one obscure crash though)
-Removed a couple useless default settings.
-Fixed a singular menu option being broken.
-Added more quit messages.