Repository-based Configuration Management > How to... > Creating a new version of a model (repository-based CM)
  
Creating a new version of a model (repository-based CM)
You can create a new version of a model version only if that model version is the tip version of the trunk, or the tip version of a branch that has not been reconciled.
* 
While a model version is being versioned, other users will not be able to change that model version.
To create a new version of a model (through Model Explorer):
1. Start Model Explorer (see Starting Model Explorer).
2. Expand the database in which the model you want to version resides.
3. Right-click the tip version of the trunk or sandbox for which you want to create a new version, and then click New Version.
4. If you want to add a comment to the new model version, right-click the model version, click Comment, and then type the comment.
The new version is shown in Model Explorer when you explore a database.
To create a new version of a model (through Modeler):
1. In Modeler, open the version of the model for which you want to create a new version.
2. On the File menu, point to Model, and then click New Version.
Modeler opens the new version of the model.