@hokerberg – This plugin definitely works with the latest version. We use it on many high traffic, up to date sites like https://wppopupmaker.com/.
You are likely dealing with another plugin/theme that is __doing_it_wrong ??
https://docs.wppopupmaker.com/article/297-popup-maker-is-overwriting-my-menu-editor-functions-how-can-i-fix-this
There is only 1 way to add fields to the nav menu editor and be compatible with all other plugins and themes that also do so. Otherwise only one can do it at a time. In this case not ours.
I have 3 plugins that add fields to the nav menu, all use this method and are compatible with hundreds of themes and dozens of other plugins that also do so. Check your other plugins and let their support know how to fix it.
@schossie We don’t push updates just to change a supported version number though. Honestly not enough time in the day for that kind of thing when you manage several plugin shops solo ??
I will try to update the works with tag shortly though.