* `origins`: The repositories from which to automatically upgrade included packages.
* `blacklist`: A list of packages to **not** automatically upgrade.
* `update`: How often, in days, to run `apt-get update`.
* `origins`: The repositories from which to automatically upgrade included packages.
* `blacklist`: A list of packages to **not** automatically upgrade.
* `update`: How often, in days, to run `apt-get update`.