All you holders of the HTC One Smartphone, you are just about to experience change on your phones as Verizon Wireless has started rolling out software upgrades to owners of HTC One Smartphone. Very soon the users should start seeing update messages shortly offering an upgrade to Android OS version 4.4 or Android KitKat.
The upgrade is being offered as an over-the-air patch and users should see a notification message on their screen when their handset has been identified for the operation.
The sad news is (well, not really sad) that not all users will get it at once because the rollout is expected to be staged; however they users can check their phones through the Setting> About Phone menu in case they missed the notification.
You might want to use a Wi-Fi connection and spear your airtime because the download is 617MB.