The update is a tad larger than 244MB. It brings a host of bug fixes and improvements to the smartphone headed by beefed up security and HD voice support.
Other Android 5.1 goodies include the ability control paired Bluetooth devices from Quick Settings. Users can also join Wi-Fi networks in similar fashion.
The new firmware will begin seeding to the smartphone in batches. If you are an owner of a Google Play Edition HTC One (M8), head over to your device’s settings to check if the update is available.