A number of user requested improvements have been made to the Vault Revit integration specifically around support for drawing sheets.
The 2013 Vault Revit integration now permits users to leverage the job processor for visualization file creation, improving productivity and publishes, in addition to the 3d model, 2d sheets which are attached to the model within Vault.
Leveraging the new folder level lifecycle controls this becomes a more complete deliverable management story, using these sheets for review, markup or linked to create complete drawing sets or document packages.
Inside the product itself the process of adding Revit family files to the model has been simplified as has the add files to Vault workflow. From an implementation perspective, side by side install process with Revit server has also been addressed.