Do Apple products slow down?

I'm sure most of you have owned or had an experience with at least one Apple product.  If you have not heard of Apple or are not familiar with them, Apple is a technology company that deals in smart phones, computers, and tablets.

If you have had an Apple product this might have happened to you:  You have the newest iPhone and it is running great.  It is quick and you are not having many problems with it, but then Apple announces their newest iPhone, let's say iPhone 7c.  With it comes a complete overhaul of the operating system like from ios 6 to ios 7 seen bellow.

This new operating system is available on your phone and it looks exciting.  You download this new firmware update and suddenly your phone seems to be slower.
This case has happened to so many people that they believe that Apple is making their new ios bad for their older phones on purpose to get them to buy their new products.  Most of this is accepted fact. The conspiracy lies with whether or not Apple is slowing phones down on purpose to get people to buy their products.

Those who do not believe in the conspiracy are generally the Apple fans who will be buying the new phones regardless.  There are two big schools of thought that the opposition of this conspiracy hold.

1. it is illegal to do this on purpose
2. The new software's are optimized for the new phones and not meant for their older phones

Slowing down Apple phones on purpose put them at a legal risk I do not think anyone would disagree with that.  When Apple releases new phones they typically have the next great ios to end all ios.  This great new ios is designed for the new phone with its features in mind yet they still make it available for its more recent models.  Side by side comparisons show that older phones with the new ios are very slowed down.  Some have seen it difficult just to check their email.  While Apple may not be slowing down their phones on purpose they are most definitely aware that this happens to their phones.  They would have to do testing on their old phones to figure out whether or not they would be able to support the new ios.  They also would need to modify it so it would be compatible.  If they were worried about their older phones slowing down then they would just not release the ios for their older phones.  This is why there is no way Apple is ignorant to phones slowing down with new software.

CONFIRMED

http://blackbag.gawker.com/does-apple-ruin-your-iphone-on-purpose-the-conspiracy-1690649898
http://www.theweek.co.uk/59708/does-apple-slow-old-iphones-when-a-new-model-comes-out