I'm not 100% sure that this problem is a result of the most recent update but within the last week, maybe week and a half my Samsung S4 4.4.2 is not maintaining Bluetooth Connectivity in my car (2013 Volkswagen GTI). I have never lost Bluetooth connectivity before with this phone whether it was in my Beetle or my GTI until recently (the Beetle was sold a couple of months ago). I run almost daily and I have not experienced this problem with my wireless Bluetooth headset. I suspect something is wrong with the last update.