Hi I am planning a new project and I am thinking of using 2.4 beta. The question for me is if it is usable without big major bugs. An other important thing is, is the objektdatamanager module still working ? I found this module very useful.
I will test the version today but it would be nice if someone could say already something about possible step stones and traps :).
I got 2.4 running on fairly large site, and I use dataobject_manager extensively. There is custom modification done, converting CMS into a Document Management System (allows you to attach documents to pages) and it seems to work quite well. I might have fixed some issues on the way though, so if you run into trouble, ask, I might be able to give you some diffs :)
And the traps are in the trap-tracker :D
Edit: I must have been lucky with DOM, UncleCheese says it's not ready for 2.4: http://silverstripe.org/dataobjectmanager-module-forum/show/260986?start=136#post278718