I tried to upgrade my WRT32x to 19.07.0 and found that when configuring the wifi there was no option to use EAP under security. I did install wpad and also tried wpad-openssl. This feature was working in the 18 series just fine.
I also found that I was not able to use luci app advanced reboot to reboot to the other partition, it gave an error about not being able to set the boot parameter required.