User Help > Managing Source Files as Members > Deleting a Revision
 
Deleting a Revision
CLI EQUIVALENT 
si deleterevision
If you know you will never use a revision again, you can delete it, provided it is not used in a checkpoint or is not the current member revision of a project configuration.
Note the following:
Only delete a revision when you are certain you will never need it again. Once you delete a revision, it cannot be retrieved. Any historical checkpoints based on a particular revision become invalid if that revision is deleted. A revision cannot be deleted if it is the starting point (root) of a branch. You should never delete the head revision of an archive.
Any existing locks on revisions are removed when those revisions are deleted.
By default Integrity Lifecycle Manager determines if the revision exists in other locations. If the revision is used in other projects, Integrity Lifecycle Manager warns you that deleting the selected revision will break the listed items.
To delete a revision in the GUI, select a revision from a Member History view and select Member > Revision > Delete.