You can compare the selected model version (Model version, Version) to the model in your workspace or the previous version. The model on your workspace may contain changes that have not yet been versioned and the comparison allows you to identify how the model has been changed compared to the selected version.
Prerequisite
You have opened a versionable database containing versioned models.
Procedure
The two models are opened next to one another on a tab. Changes are highlighted in the modeling area. You can display more precise information about the changes in the Details pane. If a model that is used for the comparison is already open, it is moved to the model comparison tab.