Question: Apple recently released a new version of iTunes Connect.
I just want to change the primary language of my app, but the documentation (<https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnect_Guide/Chapters/DisplayInMoreLanguages.html> at the bottom) is now deprecated.

Anyone solved this problem?

[![enter image description here](https://i.stack.imgur.com/55D9K.png)](https://i.stack.imgur.com/55D9K.png)

Answer: 
My Apps > App Store > App Information > Primary Language

[![enter image description here](https://i.stack.imgur.com/3aU9Q.png)](https://i.stack.imgur.com/3aU9Q.png)

UPDATE: 

Please check Localization in your project. Maybe only "French" is showing? 

[![enter image description here](https://i.stack.imgur.com/Z7fj9.png)](https://i.stack.imgur.com/Z7fj9.png)
I had the same problem. My solution was to untick 'Use XXXCOUNTRYXXX Apple Watch' under 'Apple Watch' in Media Manager (and any others that may be ticked by default). I was then able to change the primary language.

[![Screenshot of tickbox](https://i.stack.imgur.com/BvFS4.png)](https://i.stack.imgur.com/BvFS4.png)