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# Running a Security Update

You should periodically rebuild the Docker images in order to deploy the latest security updates.
When you first run `docker compose up`, the deployment process downloads dependencies and rebuilds the Docker images with the latest available software. Subsequently, these images are reused each time you start the containers.

FICO releases regular software updates. To make sure you have the latest security patches installed, you should periodically rebuild the Docker images. To rebuild the images, follow these steps:

1. If the containers are currently running, stop them.
2. Rebuild and redeploy the images.
   Run the following command:

       docker compose -f config-file.yaml up --build --force-recreate

   where config_file.yaml is the Docker Compose configuration file you are using to deploy.
   This command causes the old containers and images to be removed, and new images to be built with the latest dependencies. The containers are redeployed and started.
   Note: No data is lost during this process, because it is stored in Docker volumes or file system locations that are separate from the containers.

You can subsequently start the containers using the normal `docker compose -f config-file.yaml up` command, or Docker Desktop.
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