European HTC One (M8) receives update to Android 4.4.3
So just what comes with this update? Well, besides the inclusion of the Android 4.4.3 build, there are various security fixes and performance enhancements to Wi-Fi, Bluetooth and network connectivity. According to the changelist, the camera is getting an update and "Image Match" is coming to the Gallery. It also adds "Power History" to the Settings page, and there is an update to the HTC Sync Manager. The update also optimizes BoomSound, Extreme Power Saving Mode, Motion launch and Quick Setting.
All of the Android 4.4.3 updates for the HTC One (M8) include a combination of the older OS build, with the security fixes from Android 4.4.4. Don't expect the carrier branded versions of the HTC One (M8) to receive the update right away. The carriers need to test out the update first, which leads to a delay before it is pushed out to their customers.