They've also added a whole load of negative features, or needless complexity, and taken away the helpful in the name of fashion. Maybe I liked coverflow. Or an analogue clock on the lock screen. Maybe I liked big album art on the lockscreen when playing music instead of the absurdly tiny thumbnail of now.

Snow Leopard, iOS 6, Word 6 (or 2003 if we have to take the modern era), all seem easy choices, yet the companies doing it never seem to notice they jumped the shark. Dropbox 10x the size with built in messaging anyone? Thought not. :)

Agree on iOS 6. For me it's not that the later versions don't offer good and useful features. It's just that I'm disgusted everytime I have to look at that god aweful UI. Jonny Ive truly has no taste.

Swipe to go back is one of the unexpected improvements in iOS 7 that I think many people would immediately miss when going back.

Password manager integration is a pretty monumental feature I couldn't live without.

They've added new features I like, but that was the sweet spot of discoverability and aesthetic. It's been downhill since. I'm also not loving making it a more general-purpose OS—the iPad/iPhone as a slab of metal & glass that could become any of several tools, with a no-BS operating system keeping it all coordinated, was what really made it special.