>> This is the part I don't get. For the external developers, if they >> care about compatibility, why aren't they testing periodically, >> regardless of alpha/beta releases?
Fredrik> because they don't want to waste time and effort on testing Fredrik> against releases that are not necessarily a close approximation Fredrik> of the full release? testing takes time, and time can be used Fredrik> for many different things.
How is that a waste of time? You've got the latest stable 2.4 installed I presume. Do the svn-up/make dance (at least on Unix-y systems - can it be much more difficult on Windows?). If it breaks something, either figure out why or drop back to 2.4 for a week or two and try again. If application breakage remains, investigate.