When you are ready to begin a new design in 
	 Revit, create a model. 
  
 Use any of the following methods: 
	 
- On the Home page, under Models, click New. 
		
 
- Press CTRL+N. 
		
 
- Click File tab
New
 (Project). 
		 
Important: Revit models are not backwards-compatible. When you create or modify a model using the current release of the software, you cannot open the model later using a previous release.