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Upgrading refers to the increase of a currently installed Version, Release, or Modification level (see Versioning) of an Agent on a machine to a later Version, Release, or Modification level of that Agent (for example, upgrading Universal Agent 6.2.0.1 to Universal Agent 67.82.0.0).
If you are upgrading from a previous version of Universal Agent, see Upgrading Universal Agent for instructions.
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Applying maintenance refers to the increase of a currently installed Maintenance level (see Versioning) of an Agent on a machine to a later Maintenance level of that Agent (for example, applying maintenance to Universal Agent 67.82.0.0 to increase its maintenance level to 67.82.0.1).
If you are applying maintenance to your version of Universal Agent, see Applying Maintenance to Universal Agent.