Millions of people check out Facebook on the go every day, and many choose to use the native Facebook apps rather than the mobile version of the website. Today the official Facebook iOS app was updated; the new version was engineered with Objective-C instead of HTML 5 at its core. The update, originally scheduled for July, is much faster and more responsive than the previous version.
Honestly, that's about all there is to say. Sure, there are a few tweaks like banners to indicate new comments or stories in your feed, but today's update was all about performance. For that, I am glad.