https://arstechnica.com/gadgets/2018/10/wi-fi-branding-to-get-a-lot-simpler-with-upcoming-wi-fi-6/

The Wi-Fi Alliance, the trade group that develops and promotes wireless networking standards, is attempting to make Wi-Fi naming a bit simpler with the introduction of 802.11ax next year.

The plan is to brand the new specification as "Wi-Fi 6," rebrand 802.11ac as "Wi-Fi 5," and 802.11n as "Wi-Fi 4," making it easy to tell at a glance which standard is newer and, hence, faster.