What Sundial has finally arrived: all subscription customers can now download the updated and improved version of Revit 2015 - Revit 2015 R2 - from the Subscription Center!
In addition, a new extension "Site Designer for Revit" has been released, which should make it much easier to work with terrain models. The extension and the associated documentation are only available in English, but this should be bearable.
The new Revit functions included in the update should be largely familiar from Revit Sundial and are here documented.
Another interesting detail in passing: Revit 2015 R2 now also includes Dynamo automatically, which makes the growing importance of this extension for Revit even clearer - and will hopefully make the fan community grow even more!
More articles on this topic:
http://aectechtalk.wordpress.com/2014/09/17/revit-2015-r2-releases/
http://whatrevitwants.blogspot.de/2014/09/most-powerful-subscription-release-for.html