While the fix is simple, its not a minor thing just to change a preferences file external to the image. This is going to bite *everyone* who moves to 5.0-development, and when 5.0 is released its going to bite lots of general public.�� A debugger can't be presented at startup with any reasonable expectation that users think Pharo is a quality product.��
First impressions count.��
This should be handled more gracefully by presenting instructions on how to migrate to StartupPreferencesLoader using version specific folders."
Yuriy, Did you log an issue already to cleanup the StartupLoader references?
cheers -ben