With the recent update, Facebook's iPhone app changed one important feature: the “Most Recent” setting of the news feed. If you updated the app recently (to version 40.0), you're most likely asking, “Where's the Most Recent option for the news feed?”
While most of other new functionalities in the new update are cool, this is one feature that Facebook has kind of screwed up. Thankfully, they didn't completely remove the feature.
Here's How to Access the Most Recent Feed in the Facebook iPhone App
Step #1. Open Facebook app → Tap on More from the menu (bottom.)
Step #2. Tap on “See More.”
Step #3. Tap on FEEDS.
Step #4. Tap on Most recent.
Head back to the News Feed and now, it should load the most recent feed on the app.
It makes sense to check out the most-recent status updates, photo updates and other shares from your friends and pages you've liked/subscribed to. I don't know why Facebook wants to change this default behavior to something that's not so “current”.
In other things that have changed, Facebook app now lets you edit updates before you post them. This includes viewing and removing suggested links based on your status update / link share.
The other feature is offline posting: you can now use and post your status updates/shares to Facebook even when you are offline (Airplane mode / no data etc.). Facebook will post the update whenever your iPhone connects to a network.
Download the new Facebook app here. If you already have the app installed, go to the App Store → Updates section to update the Facebook.