Samsung Galaxy Mega users of Sprint will be very happy to know that Samsung is still updating their phones even after the new Mega 2 launched. No Android L (Lollipop) here, but this new update is a small but significant update if you want to try features like international WiFi calling.
So what really you will get after the update? According to change log Samsung brings in HD voice icon support, international WiFi calling support and Google security patches.
WiFi calling support is the biggest change here. So go ahead and update your phone for all the new goodies.