In the labyrinthine world of drivers, newer is not always better. Version 5.1.22.0 achieved cult status for three reasons:
A: Generic drivers often have a base date from the original WHQL submission. Version numbers are incremental. A driver showing “2009” with version “5.1.22.0” likely was digitally signed later but retained the legacy timestamp. 802.11n usb wireless lan card driver version 5.1.22.0