Google has dropped the ball with KitKat updates.
Previously it used to be that if a nexus device is getting an update then its getting all the features that its hardware can possibly run. This was the case with the nexus S 4.1 update and galaxy nexus 4.3 update. Unlike Apple Google never discriminated an old phone unless something was clearly hardware limited. But now it seems Google gave an Apple style 4.4 update to the nexus 4 with features missing for no reason whatsoever just for the sake of maintaining exclusivity with the new phone.
I am not here to complain since I don't even use stock android but I used to be of the opinion that Google's full fledged 18 month support is better than Apple's half assed 3 year support. Google was actually the only OEM that wasn't doing this so its rather disappointing.