Administering Ambari
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Managing versions

Ambari stores multiple versions of components and provides the ability to set one of those versions as current.

Ambari enables you to manage versions of the stack installed in the cluster and registered with Ambari Server. You can register a new version, upgrade version-repository base URLs, and de-register a version. After you install a cluster, Ambari automatically registers the version of the stack software.Admin/Versions lists the current stack, name, version, and cluster that is running.