Phil Schiller, Apple’s Senior Vice President of Worldwide Marketing, sat down with The Loop and The Verge to announce sweeping changes to the App Store, including changes to App Review, business models, and app discovery. We have already seen the effect of the changes to App Review. According to Schiller, as a result of changes

Find App Store Settings screen At the very beginning, you have to enter the app store settings by going to "Settings" – "iTunes & App Store". Then, you will see your Apple ID displayed in the screen. Step 2. Sign out old Apple ID After that, tap on your Apple ID and there will pop up the below screen. app store connect - Update iOS app description after Update As Sam commented this behavior seems to have changed recently (maybe with iOS 11 App Store Changes?) so it is no longer possible to update the App Description without an App Update. The Description field is now "locked" for apps that are in Ready For Sale state. Other metadata fields continue to be editable as specified in the official documentation linked below. Change photo background - Apps on Google Play

Update As Sam commented this behavior seems to have changed recently (maybe with iOS 11 App Store Changes?) so it is no longer possible to update the App Description without an App Update. The Description field is now "locked" for apps that are in Ready For Sale state. Other metadata fields continue to be editable as specified in the official documentation linked below.

Phil Schiller says no App Store policy changes coming Schiller noted a variety of fixes Hey can implement to fall in line with App Store rules, including offering users free and paid versions of the app, an RSS-style app that can be upgraded with an How Apple’s app store changed our world - CNBC

Fyber and IMVU Deploy Major Revenue Recovery Plan Amid App

Major App Store Changes Announced - MacStories