FoxFi is an app - it runs. Whether Verizon has updated anything on their end to prevent tethering is another question, and one you won't get an answer to.
Oh RukBat you are so witty I stand in awe. Thank you so much in helping me understand how an app works..I would like to say more but I'll leave it at that..
Don't know if you ever got an answer to this, but I've been able to use foxfi after the update but that VPN prompt is really annoying and the battery drain after installing it, even when it's disabled, is crazy, so I uninstalled it.