On iOS 9, Apple introduced Siri Suggestions which displayed contacts and apps it predicted would be most useful to you at a particular time and location. It also offered up smarter answers to requests – but not on the same scale as the iOS 10 update.
Because Siri is now open to third party apps, you'll be able to say things like "Send a WeChat to Nancy saying I'll be 5 minutes late", and it'll do just that. Siri is also now smart enough to understand that command in a variety of ways, which means you don't have to say phrases in a set order for it to work.
That's what Apple claims anyway – we'll remain on the fence until we actually get a hold of it.
