Comment 1 for bug 1358760

This API will be part of the click-metadata API, which is used by ubuntu-system-settings/system-update plugin. This is being moved to Click Package Index to support filtering of updates based on the device's available frameworks and architecture, in the same way package searches are filtered. The first part of this work has landed in CPI, but still needs to be rolled out.

The next step in enabling the department updates is to return packages' department in that response so that the store scope can make any adjustments necessary.