they are nothing about the D feature little text to enhanced About D programming update to 2.058, in more fedora ship now several D libraries: gtkd, derelict, phobos, tango.. already added into https://fedoraproject.org/wiki/F17_Beta_release_announcement#Features
The Beta announcement has already been shipped (on 4/17, with the beta), and thus I am closing this ticket as it's too late to do anything with it for Beta. We do our best to cover Features, but with 60+ features we can't possibly get them all covered in every announcement. D was noted in the Alpha announcement, and will likely be mentioned in the Final announcement, although likely not with the level of detail about libraries that you listed above. It is a marketing piece, not release notes, and thus we need to keep it moderately concise, particularly with this quantity of features, to get everyone in. Marketing writes these announcements, and not release engineering, and thus if you have any questions concerning this I would recommend mailing the fedora marketing list.
of course that is ok . In beta release note they are all language update execept D. that is the reason