It looks as though more and more devices these days are on the receiving end of the Android 4.4.4 KitKat update, such as the Galaxy Note 3 from Sprint, as well as a range of Xperia Z, ZL, ZR and Tablet Z from Sony. Well, those who happen to own a Samsung Galaxy S5 and are rocking to Verizon as your mobile carrier of choice, you too, will be on the receiving end of the Android 4.4.4 KitKat update, as installing this update ought to see an end to any audio issues which previously plagued a Bluetooth connection.
The Android 4.4.4 KitKat update would be arriving to the handset via Over The Air, where it will be a rather sizeable 346MB, so it is highly recommended that your handset has at least half of its battery life left, not to mention being connected to a decent Wi-Fi network to make things as painless as possible. Other than that, there ought not be any kind of major changes, as Android 4.4.3 KitKat would have already taken care of the bug fixes, while Android 4.4.4 KitKat would target more on security issues.
Do be patient if you have yet to receive the Android 4.4.4 KitKat update, as it might take some time considering the rollout is done in stages.