Custom IP created by the IP packager contains a field for the version. The version information is set in the Identification page of the Package IP window, see Packaging IP.
A major#.minor# numbering scheme unifies
the IP version numbers, and a revision number field distinguishes slight changes in the
same version. For more information, see the IP Versioning page available from the
AMD website.
Each time the IP is re-packaged, if the version is not changed, the IP packager increments the revision number automatically. The Vivado IP catalog supports only a single version of an AMD-created IP per release; however, custom IP is not required to adhere to this behavior.
A custom IP can have multiple versions available in the IP catalog, and you can select any available version. You can also upgrade the currently used version of a custom IP to the latest available version.
To save a specific version of your IP prior to re-packaging, the recommended flow is to manually copy the packaged IP directory contents to a new location. The IP catalog can point to this new location to ensure the catalog can show both the original and updated version of the custom IP.
For more information on setting the custom IP location, see The Create and Package New IP Wizard.
When using revision control with your custom IP definition, the recommendation is to use an external repository location for your custom IP. By default, the Create and Package New IP wizard chooses a location relative to the project source files. By selecting a location outside of the project, the custom IP is separated from the project structure. Placing the project structure into revision control is not recommended. For more information on setting the custom IP location, see the The Create and Package New IP Wizard.