Less than a week after it was spotted on Geekbench running Android 5.1.1 Lollipop, a new rumor is suggesting that HTC's upcoming One A9 flagship (codenamed Aero) will run Android 6.0 Marshmallow out of the box. The information came courtesy of prominent HTC leaker @LlabTooFeR, who also revealed that the handset will be launched in the October-November time frame, which is in-line with earlier rumors. Needless to say, none of this has been officially confirmed, so take it with a pinch of salt. For those aren't already aware, the Taiwanese company has scheduled a press event on September 29, where it is expected to unveil the One A9 flagship along with the Butterfly 3 smartphone.