I upgraded from the 2.9.10 animation beta to 3.0 pre alpha. None of the keymaps or settings were persisted/imported from the previous version. The most ideal solution would be to prompt the user to import the settings or not. Another solution would be to provide an import/export settings & keymap option so the user can do so manually.
I'm really sorry, but we just don't have the time to implement a migration script. But we do have several shortcut profiles now. WISHGROUP: Out of scope