We now allow you to configure 2.4 and 5 GHz wireless settings separately at the site-level, instead of making all wireless settings apply to all radios in the devices in your site.
What didn't change?
You can still configure your site's wireless settings from the "Express Setup" menu page. Doing so will cause the wireless SSIDs to be applied to both the 2.4 and 5 GHz radios for the devices in your site, in one simple step. (This of course only applies to devices that have an "Enterprise" type configuration policy).
The additional "Wireless 5 GHz" and "Wireless 2.4 GHz" configuration pages just make it easier for users to specify different SSIDs on each of their device's radios if they prefer.
Express setup (behind the scenes)
Adding two wireless networks (main + guest) on the site express setup page:
Results in this on the "Wireless 2.4 GHz" configuration page:
And this on the "Wireless 5 GHz" configuration page: