
The update is offers over-the-air (OTA) and users can check for it manually by heading to Settings > About > Software updates. Once you install the software update, your device will have the 1.29.666.17 software version and should offer a noticable improvement in performance.
The HTC One which is the company's newest Android flagship, features a 4.7 inch touch display with an FHD resolution, up to 64GB of internal storage, a 4 megapixel camera with UltraPixel technology which is capable of 1080p HD video capture, a secondary camera for video calls and is powered by a 1.7GHz quad-core processor with 2GB of RAM. The handset is definitely one of the most beautiful smartphones ni the market right now.
source - MobileSyrup