Am wondering if anyone else has this experience:
in the 2.4 beta: select a page in the back-end go to a field - any field but content in main or meta or whatever - and press enter.
In firefox I go from the Dutch version to the English version of the page (and when no English version is available one is created for you) and back
In Safari I get an error saying: [Notice] Undefined index: newlang. But when I press save everything is fine.
BTW: where to put questions about errors etc about the 2.4 Beta? Not everything deservers a ticket, because some things look like errors but could be different intentionally.