Optionalentity_URL of an image representing the update.
Optionalin_Whether the update is currently in progress, or a percentage (0-100) of completion.
The currently installed version.
Optionallatest_The latest available version. When omitted, Home Assistant assumes it is equal to the installed version.
Optionalrelease_Summary of the release notes or changelog.
Optionalrelease_URL to the full release notes of the latest version.
OptionaltitleTitle of the software or firmware update.
Optionalupdate_The current progress of an in-progress update, as a percentage (0-100), or null when not in progress.
The JSON payload published on an update entity's state topic.