## Managing versions

Your resources might change over time. JReport Enterprise Server uses a versioning system to create and manage resources that have changed in content and properties owing to updates made to them.

All the resources in the server resource tree: report set resources, catalog resources and report set result resources, are controlled by versions. A great proportion of resource management tasks are carried out by managing resource versions.

This section shows how to manage resource versions as follows:

- Creating versions
- Browsing versions
- Applying an archive policy
- Deleting versions
- Advanced version topics