Update AT&T HTC One Mini to 4.4.2 KitKat (3.10.502.3) with HTC Sense 5.5

The 4.4.2 KitKat update for AT&T HTC ONE mini (PO58220) has just started rolling out today, the latest 4.4.2 software build comes in build version 3.10.502.3, and this update now includes the latest HTC Sense 5.5. According to HTC, there are numerous stuff included on 4.4.2 update like the
key enhancements to the user interface, phone dialer app, lock screen, caller ID, HTC BlinkFeed apps, and many more:

Here are the 4.4.2 software update info:

Android version: 4.4.2
HTC Sense version: 5.5
Software number: 3.10.502.3
Kernel version: 3.4.10-g517e47c
Baseband version: 1.19.40d.00.14_10.20.40.4408L
Build number: 3.10.502.3

HTC One mini by AT&T 4.4.2 KitKat update
The software update build 3.10.502.3 file size is 658 MB and can be downloaded through over-the-air (OTA) with WiFi connection. So just hit that Settings > Software update > Check for updates, if you have AT&T’s HTC One mini.

Source: AT&T blog