Indeed, you are right, they did not reduce the battery level but reduced the performances after the update. So before the update, your phone was reasonably fas

Indeed, you are right, they did not reduce the battery level but reduced the performances after the update. So before the update, your phone was reasonably fast. A new phone/os version comes out, you have an automatic update, and then your phone will be slower to do the tasks that it was doing well before. So, as an user what will be you conclusion? If you are not even aware that performance slow down is due to the update, you will think "my phone become older, I need to buy a more recent one!". For memory: https://en.wikipedia.org/wiki/Batterygate https://en.wikipedia.org/wiki/Batterygate "Apple Confirms It Degrades Your Old iPhone's Performance" https://www.forbes.com/sites/ewanspence/2017/12/20/apple-iphone-kill-switch-ios-degrade-cripple-performance-battery/#7dfd1fd116a8 https://www.forbes.com/sites/ewanspence/2017/12/20/apple-iph... And to be remembered, they were fined for that by the French regulator: https://www.bbc.com/news/technology-51413724 https://www.bbc.com/news/technology-51413724