Explanation of canOpenURL changes in iOS 9

Intro

Since iOS 9 has been out for almost 4 months, I realize that this post is a bit overdue, but since I still see a lot of misinformation on the subject bandied about on social media, I figure it is better late than never.

Here are some examples of misconceptions I still hear propagated by developers about the changes Apple made to the canOpenURL call in iOS 9:

“You can now only call up to 50 unique custom URL schemes in an app.”

“Apple made this change to kill app launching apps.”

In this post I will try to explain the changes made in iOS 9 that affect the canOpenURL call as clearly and concisely as I can in order to quell any remaining fear or false information out there on the subject. And then I’ll probably discuss more of the mundane details for developers out there with too much time on their hands.

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