Latest 10.1.0.xxxx OS for SQN-3 ?

Hey guys. I'm not looking to upgrade to the latest 10.2 leak just yet, so I've been looking in the forums for the latest 10.1 OS for my SQN-3. I currently have the 4633 official OS from OTA but it's been very buggy and unstable for me, so I'm looking for a later leak.
Is it a leak or an official OS? and where can I find it?

Thanks a lot.