Software updates and rollbacks

You can update the Nozomi Networks software to a newer release, or roll it back to a previous release on physical or virtual sensors.

Before you do an update, or a rollback, Nozomi Networks recommends that you do a full backup.

Updates

You can use an update file to easily update Guardian sensors, Central Management Console (CMC)s, and Remote Collectors, and works for all physical and virtual deployments.

Note: You need to use different update commands and procedures for container installations. For more details, see Install a sensor in a Docker container.

You cannot update to a version that is more than one major version ahead of your current version. For example, you cannot update from version 23.0.0 to 25.0.0. Before you update a sensor, refer to the Update remarks topic in the Release Notes, which recommend update paths.

Important: Manually scheduled updates apply regardless of whether the version is locked, or the update policy is disabled.
Updates will not occur if:
  • In the CMC, the sensor is locked.
  • In the CMC, the sensor Update Policy is set to Do not update sensors

Rollbacks

When you rollback to a release that was previously installed, all data is migrated back to the previous format.