The Configuration Update Manager provides two modules: Configuration Update Base and Configuration Update Reports. The base module provides an underlying API for listing a configuration, reverting a configuration, and running difference checks with results. It extends Drupal core's configuration operations. The reports module provides a user interface on top of the base module. The Features module uses the base module to provide difference review and automatic reverting of a configuration.

When reverting a configuration, the raw values are collected and then used to overwrite what currently exists in the system. The reports also allow importing a new configuration added to a module.