Use the Audit function periodically to maintain the health of a Revit model, when preparing to upgrade the software, or as needed to locate and correct issues. The Audit function scans, detects, and fixes corrupt elements in the model. It does not provide feedback on which elements are fixed. Auditing a model can be time-consuming, so be prepared to wait while the process completes. As a best practice, audit the model weekly.
The top two requested features on the Revit Ideas forums with over votes each have both been included in this new release. If you want a peak at upcoming Revit features that are being worked on head over to the Revit Roadmap http:
Как установить Autodesk Revit 2019?