Facebook started a beta testing program through the Play Store a while back, and if ever there was an app that needed some help from the community, it's Facebook. The newest update to version 3.7 brings a few notable additions, as well as a variety of bug fixes and tweaks.
There's the changelog from Facebook's beta tester site:
Use icons in status updates to express what you’re feeling or doing
Edit your posts and comments, and tap to see all your changes
See upcoming events at a glance on your favorite Pages
Create and share new photo albums from your phone
Various bug & crash fixes
“Show on lockscreen” setting is visible again
Improvements to photo loading in news feed
Improvements to news feed load time
Most Recent setting in News Feed not sticking
Improved comment editing is a big deal, as is the ability to create new albums from the device.