You can roll back the delivery of files and folders to a stream. For example, you deliver changes but discover problems in the code and decide to remove the changes. Undo creates a new changeset with the reverted changes that preserves the full history.
NOTE
Requires the same privileges as deliver.
Undoes an entire changeset, not individual item revisions.
The original request relationships are not undone.
Only makes changes in a repository and does not affect the items in a work area.
After completing an undo, to synchronize your work area with the repository, run an update.
You can run undo at any location as long as the changeset does not affect items further up the hierarchy.
Can only undo a single changeset.
If items in a changeset have more recent changes in a newer changeset, you cannot undo it.
Assume that changeset 14 has this item revision:
f.txt revision #2
And that changeset 13 has the previous version of the same item:
f.txt revision #1
If you undo changeset 14, the revision in changeset 13 becomes the tip revision and a new changeset, 15, is created with the change:
f.txt revision #1
In the desktop client do one of the following:
To undo an entire changeset, from the Stream or Project menu select Changesets.
To undo a specific set of changes, select a folder. Right-click and select Folder Changesets.
In the Windows Explorer integration, select a folder where you want to undo changes. Right-click and select Dimensions | Changesets.
In the Changesets dialog, right-click a changeset and select Undo Stream/Project Version.
(Optional) Select requests to relate to the change and add a comment.
Click OK.