Can be used to change the update source for core Joomla
Get database fix info for all extensions.
Get database fix info for an extension, given its ID
Get database fix info for an extension, given its element
Apply database fix for an extension given its ID
Apply database fix for an extension given its element
Is it even possible to coax Joomla's API to return the download URL of the currently installed version?
Reinstall the current version of an extension, given its extension ID
Reinstall the current version of an extension, given its element