StoryBoard iOS 7.1 to iOS 10 And missing Collapse of Curly Braces

I have some changes to my StoryBoard and I have not updated it since iOS 7.1.
I will be adding some text labels and Labels. Can you tell me if it would be advisable to redo the Storyboards to iOS 10? or just leave it alone??

Able to Collapse Curly Braces?

I found the problem for my Curly Braces. For it was the Code Folding Ribbon.
I just need a reply If I should update the Storyboards for iOS 10?

If it works you probably should not worry about it. Xcode will handle any updates required to make it compatible with new versions. Are there any specific features you have used that you are worried might be outdated?