The Google play store tells me there is another DJI GO app update to my existing 4.1.5. Doesn't look like they changed the version number so I'm guessing it's just a bug fix release??

I cringe at the thought of a Android software update dreading what could get worse next..

The latest app version for Android now is 4.1.5. I recommend that you can refresh again if it asks so.

That's the version I  WAS running (I double checked). I installed it but what's the update addressing and why the same version number?

Unusual..

DJI Thor Posted at 2017-8-18 20:18
The latest app version for Android now is 4.1.5. I recommend that you can refresh again if it asks so.

There is indeed confusing information when looking up the DJI GO 4 app in the Google Play Store:
https://play.google.com/store/apps/details?id=dji.go.v4

This app was apparently updated on 17 August 2017, but no version number.