The patch specifically fixes the "Karl" error by allowing legacy v0.2 saves to bridge over to the new engine architecture without corrupting. How to Install the Patch
With the "Sorry Karl" bug now patched, players can finally enjoy the full scope of the version 0.3 update. This version is the largest content drop since the game's inception, focusing on: princess reconquista v03 sorry karl patched
You can usually move your saves folder from the old directory to the new patched directory. The patch specifically fixes the "Karl" error by