Latest leak purportedly the same as the eventual OTA update
A complete functioning version of Android 4.3 with Sense 5.0 for the AT&T version of the HTC One has surfaced, and to many people's liking it seems to be a near final build of the software. Following reports from an insider that Android 4.3 updates for US versions of the One are on their way in the coming weeks, the leak of this complete RUU (or separate flashable ROM and radio) of the latest update gives many folks hope that the official OTA isn't far behind.
Between this leak and previous information and leaks of the firmware for various versions of the phone, we have to think that the official update can't be far away now, provided that the US carriers get on board with the program.
If you're willing to tinker around with your AT&T HTC One and want an early taste of what Android 4.3 could look like on the handset, head to the source link below. Just be sure to proceed with caution and know what you're getting into before you click — nobody likes a bricked phone.