Based on thread
https://lists.gnu.org/archive/html/guix-devel/2017-01/msg00465.html

- Fixed some issues raised by Danny Milosavljevic on thread above
- Updated the beta version to 6, up from 4
- Started up a thread on ldc forum to have a version flag added to
deactivate network tests when building ldc
https://forum.dlang.org/post/zmdbdgnzrxyvtpqafvyg@forum.dlang.org

-- 
Frederick M. Muriithi