Facebook engineering manager Ari Grant took to the social network earlier this afternoon to explain what Facebook found was causing the issue.
The first issue, called a “CPU spin” in the network code, should be better with the new update.
Grant explained more about the other problem:
The second issue is with how we manage audio sessions. If you leave the Facebook app after watching a video, the audio session sometimes stays open as if the app was playing audio silently. This is similar to when you close a music app and want to keep listening to the music while you do other things, except in this case it was unintentional and nothing kept playing. The app isn’t actually doing anything while awake in the background, but it does use more battery simply by being awake. Our fixes will solve this audio issue and remove background audio completely.
The Facebook app is universal and designed for the iPhone/iPod touch and iPad/iPad mini. It can be be downloaded now for free.
If you’ve been experiencing issues with the Facebook app, definitely make sure to download the update as soon as possible.