Due to high winds, I've not been able to fly for some time, until today, which is also the 1st flight since latest firmware update. Hand launch and landing are SOP for me, but today, during landing, the props continued to spin for 3 - 4 seconds after aircraft was sitting in my hand, and "ESC buzzing" alert came up on my display, with the LED's on aircraft flashing red. Warning would not stop until I powered down aircraft, then powered back up. I'm assuming ESC is electronic speed control, and I don't know why it took much longer for props to stop after descent stopped by my hand, but it did, and I can only assume it's part of the latest update. Those of you who launch/recover by hand, be aware of this...be safe!