So iOS 10.1 has reinstated this message to warn about 32 bit apps that haven't been updated in quite a while. Apple is supposedly sending all developers a notice to take a look at their apps and recompile for 64bit. I had asked about this app a while back and kevinds stated that the Gateway app is largely controlled by Arris with some input from Shaw. Fair enough but I'm sure Shaw can work with Arris to get this app updated and I'm sure the Gateway app is used by many other ISP's. It would be very unfortunate if Apple yanked Gateway from the App store because of this.
Does Shaw have any info on progress on this app?