I have an iPhone that I bought less than a year ago so you can imagine that I am not ready to spend more money on another phone, besides, I like the iPhone SE's size and form factor.
However, I've been hearing a lot of reports that iOS 11 is quite sluggish on anything below an iPhone 7, so I'm not interested in updating to it. Especially when you consider iOS 10 a downgrade when compared to iOS 9.
What would be nice, and wanted, is a way, official or not, to completely disabling any further iOS upgrades such that it would be like Apple not offering iOS 11 to the iPhone SE at all.
Is there such a hack?