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P4 CLI Documentation | 2025.2

# Labels

A P4 Server label is a set of tagged file revisions. For example, you might want to tag the file revisions that compose a particular release with the label `release2.0.1`. You can use labels to:

- Keep track of all the file revisions contained in a particular release of software.
- Distribute a particular set of file revisions to other users. For example, a standard configuration.
- Populate a clean build workspace.
- Specify a set of file revisions to be branched for development purposes.
- Sync the revisions as a group to a client workspace.

Labels and changelist numbers differ:

Label | Changelist
--- | ---
A label can refer to any set of file revisions. If you need to refer to a group of file revisions from different points in time, use a label. | A changelist number refers to the contents of all the files in the depot at the time the changelist was submitted. If there is a point in time at which the files are consistent for your purposes, use a changelist number.
You can change the contents of a label. | You cannot change the contents of a submitted changelist.
You can assign your own names to labels. | P4 Server assigns each changelist number.

There are two types of labels: static and automatic. See Static versus automatic labels for a discussion of their differences.

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