# Upgrading the TREP Adapter

This topic describes how to upgrade the TREP Adapter.

## Upgrading the adapter

To upgrade the TREP Adapter using the Caplin Deployment Framework, follow the instructions below:

1. Copy the new TREP Adapter installation kit to the Deployment Framework’s `kits` directory
2. From the root directory of your Deployment Framework, run the command below to deploy the new adapter over the old adapter:

   ```
   ./dfw deploy TREPAdapter
   ```
3. Manually update the configuration override files in the Deployment Framework’s `global_config/overrides/TREPAdapter/etc` directory with any configuration changes introduced by the new version of the adapter.

   <dl><dt><strong>💡 TIP</strong></dt><dd>

   To determine if the override files in a new release of the TREP Adapter have changed compared to the override files in a previous release, extract the installation kits for both adapter versions and use the Linux `diff` command to compare their respective `overrides/TREPAdapter` directories.

   **Example: determining changes between 7.0.2 and 7.1.0**

   ```console
   $ unzip CPB_TREPAdapter-7.0.2-309879-x86_64-pc-linux-EL6-gnu.tar.gz
   $ unzip CPB_TREPAdapter-7.1.0-311422-x86_64-pc-linux-EL6-gnu.tar.gz
   $ diff -ur CPB_TREPAdapter-7.0.2-309879/overrides/TREPAdapter CPB_TREPAdapter-7.1.0-311422/overrides/TREPAdapter
   ```
   </dd></dl>
4. Follow the instructions in [Generating DataSource field definitions](trep-generating-configuration.md) to update the `fields-reuters.conf` file with field definitions for Refinitiv fields.

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**See also:**

* [Caplin Deployment Framework](../caplin-platform/deployment-framework/index.md)