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Upgrade agents (on-premises)

You can download most agents from public repositories. To download .NET and .NET Core agents, go to the Contrast Hub.

Copy downloaded agents to sub-directories in the $CONTRAST_HOME/data/agents directory in the Contrast application. On-premises installations of Contrast are automatically configured to support this directory.


  1. Download the latest version of an agent from the appropriate repository:

  2. Copy the agents to the appropriate sub-directory for each agent language in the $CONTRAST_HOME/data/agents directory.

    For example, if you download a Java agent, copy it to the $CONTRAST_HOME/data/agents/java sub-directory.

    You don't need to restart the Contrast application. Agents reload dynamically and become accessible for download.