“caught red-handed” implies an intent that is not supported by the evidence. The design of the battery in the 6 turned out to be problematic once the battery r

“caught red-handed” implies an intent that is not supported by the evidence. The design of the battery in the 6 turned out to be problematic once the battery reached a certain age. After lots of reports of iPhones shutting down suddenly, Apple issued a software update that slowed down those phones so that they didn’t shut down. They then redesigned the battery and this was not a problem in later models. You talk about a general slow down of phones when the OS is updated. That is most likely due to increased processing needed in later OSs. The early phone CPUs had barely enough processing to do what they needed to do so the added demands of a new OS would drag them down a little. Over time the cumulative effect would add up. This is not unique to iPhones. I have heard the same complaints from Android users. Fortunately modern phone CPUs are powerful enough that they have the cycles to spare and slowdowns are rare.