script updates AUCTeX installation.
It should be called after each major (La)TeX installation or upgrade.
If no arguments are specified, update-auctex-install caters to every
supported Emacs flavor installed on the system; else it updates only the
specified flavors, if they are installed.
On Debian GNU/Linux system
is not called weekly by a
driven mechanism, because it modifies files installed in the
hierarchy, and that would not be policy compliant. You may call it by hand,
or have the maintainer of relevant packages add a call for it in their
the hierarchy containing AUCTeX installed files.