When you check in your changes in TFS or DevOps, they are stored on the server as a changeset. Changesets contain the history of each item in version control.
A changeset is a permanent part of the history of your version-controlled items and cannot be undone or removed. You can view a changeset to see what the exact file changes were, discover the owner's comments, find linked work items, and see if any policy warnings were triggered, moreover you can also roll back the effects of one or more changesets.
List changesets that update a specific file or folder
1. In Solution Explorer or Source Control Explorer, browse to the folder or file, open its shortcut menu, and choose View History.
2. In the History window, select the row that contains the changeset for which you want to view details, open its shortcut menu, and then choose Changeset Details.
The Changeset Details page appears in Team Explorer.