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# Undo changes in streams

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.

Considerations:

- 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.

Limitations:

- Can only undo a single changeset.

- If items in a changeset have more recent changes in a newer changeset, you cannot undo it.

Example: 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`

To undo changes:

1. Desktop client:

   - 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.

   Windows Explorer integration: Select a folder where you want to undo changes. Right-click and select Dimensions > Changesets.

2. In the Changesets dialog box, right-click a changeset and select Undo Stream/Project Version.

3. (Optional) Select requests to relate to the change and add a comment.

4. Click OK.

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See also:

- Revert changes in work areas
- Merge changes across streams

https://admhelp.microfocus.com Dimensions CM 8942
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