Comparing the Contents of the Two Snapshot Streams 1. Select the first snapshot stream (example: acme_1.0). 2. Click the Show Diff By Files button () on the AccuRev toolbar. Alternative: Right-click and select Show Diff By Files from the context menu. A “show difference” icon is added to the mouse pointer. 3. Click on the second snapshot stream (example: acme_2.0). A list appears, containing the files you promoted above.