The navigation improvements are already available? How can I test it?
I have do rebuild my apliccation?
Or republish my articles are enough?
Here's when you need to rebuild your app:
When you make changes in the DPS Portal such as changing project settings, adding products or subscriptions, or adding content, you do not need to update your app. The one exception to this is uploading fonts, as I mentioned. (That team is hoping to upload custom fonts on the fly so that you don't need to rebuild your app.)