Sprint announced that the carrier’s Galaxy S5 will get updated to Android 5.0 with the software version G900PVPU1AOA6.
It will include an enhanced Voice over Wi-Fi user interface, as well as the removal of the Lumen tool bar. To check the software on your device go to Settings>About Device. If the Build number and Baseband version displays the software version G900PVPU1AOA6 then its updated otherwise for checking the updates you can go to Settings > System update>Update now.
Yesterday AT&T provided Galaxy S5 with Android 4.4.4 Kitkat on their network and even in most of the countries like Australia, Russia and in particular parts of Europe update is already rolling out or have been rolled out.