As a result of the prototyping work done on this within Ubuntu, patches are
already available for several module packages (libpam-krb5, libpam-ldap,
libpam-smbpass, ecryptfs-utils, libpam-ck-connector) which I will work on
submitting to the Debian maintainers over the next week or so. If
maintainers of other PAM module packages have questions about implementing
pam-auth-update support, I'm happy to assist - and of course if you find the
documentation lacking, suggestions for improvement are welcome.