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It's an extraordinary improvement. Does anyone know if it was written in native Objective-C or if this is a very optimized HTML5 version (or hybrid, like the LinkedIn app)


It's Objective-C with some fallback rendering for HTML5 stuff (https://www.facebook.com/notes/facebook-engineering/under-th...)


Objective-C. Check out the engineering blog post here: https://www.facebook.com/notes/facebook-engineering/under-th...




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