I have been getting warnings when I open about 1/2 of the apps I use regularly that "The application will not work in future versions of iOS". Turns out the reason is that Apple will disallow 32-bit apps from running in iOS11. All apps must be 64-bit. Given that a lot of these apps have not been updated due to likely developers that have gone by the wayside, I have decided that it is of no value for me to go to a 64-bit architecture. I therefore intend to not upgrade to iOS11 regardless what nice features it might add. I know that their spam to update will be concerning but I can't give up 1/2 of the apps I use for the glory of being on a 64 bit architecture.