Dear Stephen,
We found
https://bugzilla.redhat.com/show_bug.cgi?id=644072
which indicates that this is still on QA.
We would really like netgroups via sssd, renewable krb5 tickets and many
of the other nice new features new new sssd offers.
And since sssd-1.5-X will be the first official LTR according to this
list I was hoping to see this incorporated in RHEL 6.1.
Best,
Moritz