> In 2017, Apple put out a new iPhone, and in the same week, made my 1 year old iPhone unusable on purpose overnight to make me buy a new one. I don't follow i

> In 2017, Apple put out a new iPhone, and in the same week, made my 1 year old iPhone unusable on purpose overnight to make me buy a new one. I don't follow iphone news. What happened to make it unusable?