could you please tell me which three rodents are still not updated?
If you do not know where you run what version, you can ask onionoo to give you a list of relays with a given contact string:
https://onionoo.torproject.org/details?contact=abuse@to-surf-and-protect.net...
ctrl+f "0.2.9.8"
I added a feature request to filter by tor version https://trac.torproject.org/projects/tor/ticket/21427