[alexfringes]

Xcode saves keybindings in ~/Library/Developer/Xcode/UserData/KeyBindings I have neither experienced arbitrary resets across updates, nor have I had issues moving my custom .idekeybindings from that folder to new clean installs and finding my shortcuts intact. Maybe the update issue occurs when using the default bindings set and a change of functionality intersects with your customizations? Might be helpful to create an alternate set and go from there. Then, when updates roll in, it should be easy to track down new conflicts in Xcode's preferences via the Conflicts filter. Not sure what else might be causing it, sorry, but thought I'd point you to the folder anyway.