I am looking for the Xcode 8 port of the Newton Cradle playground, which has been rewritten in swift 3.
You can do this manually from the menu:
Edit -> Convert -> To current fast syntax
Worked for me.
I updated the playground to use Swift 3 and Xcode 8.2 in the next repo https://github.com/omaralbeik/NewtonsCradle-Swift3
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