Comment 9 for bug 1377131

You can check status of pending SRUs here:
http://people.canonical.com/~ubuntu-archive/pending-sru.html

There are links to upload queue at a glance, of the not yet approved SRUs:
https://launchpad.net/ubuntu/trusty/+queue?queue_state=1

There you can see rng-tools pending approval for trusty.