Does Nexus 4 on Android 4.3 support LTE?

I know its possible to activate the 4g antenna on the nexus 4, and many tutorials say don't update to 4.2.2 or you will lose the ability to activate the 4g antenna. Has this LTE lock been removed on 4.3. I would appreciate if anyone knows about 4g working on the Nexus 4 running android 4.3