iOS 9: low energy -> do developers have to prepare for that?

Question

In the WWDC 2015 keynote, it was mentioned that batteries will last one hour longer, and have a low power state that can extend the battery three more hours.

Do iOS App developers have to do anything for this new feature? Is there something their apps must do (or not do) when in that low battery state?

Answer 1

It looks like it has nothing to do with 3rd-Party applications and more about iOS itself. Here's an article I found:

http://www.redmondpie.com/how-ios-9-low-power-mode-for-battery-life-saving-works/

Here's another article that seems to confirm it is only for iOS itself (and background processes like downloading, which may effect some apps): http://www.idownloadblog.com/2015/06/08/low-power-mode-in-ios-9/

As far as I'm aware, none of this requires any developer interaction. From Apple's perspective that would be a bad idea, since then developers could essentially choose whether or not to comply, and would make their Low Power mode useless (because many developers would not choose to make their app perform worse)

On a side note, I'm happy that iOS 9 will no longer light up my screen if my device is facedown on a table and I get a notification. If you read, there's a few new power-saving features that do not involve the use of the Low Power mode.