Shortly after the USA Unlocked and Developer Editions of the HTC One M8 received the Android 4.4.3 update, the OTA has begun rolling out to users of the European version of the device as well. As stated by Mo Versi, Vice President, Product management at HTC, the update includes all the security fixes from Android 4.4.4 despite carrying the lower version number. Along with the security fixes, the update includes application updates the Camera, Gallery and HTC Sync Manager. Under the hood, Boomsound, Motion Launch and Power Savings Mode have also received updates.
As usual, the OTA is rolling out to unlocked devices for now, with carrier versions following up sometime in the future. Head on over to the HTC One M8 OTA download link & download the OTA zip .The software version is 2.22.401.4 and weighs in at 613MB.