T-Mobile's version of the HTC One has just received Android 4.3 and Verizon's model won't receive Android 4.3 until next month, thanks to a delay; yet, on Thursday, a published report stated that the HTC One Google Play Edition will receive Android 4.4 within the next 15 days. The HTC One Developer Edition will get updated to KitKat sometime in the next 30 days. And the carrier-branded HTC One models will receive Android 4.4 within the next 90 days...
Source: http://www.phonearena.com/news/North-American-HTC-One-models-to-receive-KitKat-within-90-days_id48955
Source: http://www.phonearena.com/news/North-American-HTC-One-models-to-receive-KitKat-within-90-days_id48955