AppDynamics switched from Semantic Versioning to Calendar Versioning starting in February 2020 for some agents and March 2020 for the entire product suite.

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    Important Upgrade Notes

    • If you are upgrading the Controller and agents, first upgrade the Controller and then upgrade the Database Agents.
    • Shut down the Database Agent process before you install the new agent. All Database Agents that are running from the same install location need to be shut down when updating that install location.
    • Download the installation package that is appropriate for your OS environment from the AppDynamics Download Center (
    • Back up the <db_agent_home> directory so you can revert to the previous installation if required. To maintain the same configuration information, you will also need the <db_agent_home>\conf\controller-info.xml file.
    • If both the old and new agents are 4.2 or newer, you can keep the old agent running while installing the new agent, allowing you to upgrade the agent with no downtime. Once you see the new agent showing up as "ACTIVE" in the agents page in the Controller, stop the old agent.

    Stop the Agent

    Stop the agent as described for your specific installation in Start and Stop the Database Agent.

    Back up the Existing Agent Directory

    Make a copy of the existing agent directory, <db_agent_home>Backing up allows you to revert to the previous agent installation if you need to. You can also copy over the controller-info.xml configuration file to the new installation to ensure the agent configuration is maintained. 

    Install the Agent

    Install the Database Agent as described for your specific installation in Administer the Database Agent.

    Copy the controller-info.xml File

    To ensure the agent configuration is maintained, copy the <backup_db_agent_home>\conf\controller-info.xml file to the new installation directory, <db_agent_home>\conf

    Start the New Agent

    See Start and Stop the Database Agent.

    Verify the Database Agent Installation

    See Verify the Database Agent Installation.

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