The video below explains the full process we advise to announce the app update to your client's end users, the image we've used in this video can be downloaded from the link below
Image Version 1
https://drive.google.com/file/d/12zTEJWnBgvh4nYD7qiTCi2UD1p_n3xVw/view?usp=sharing
Image Version 2
https://drive.google.com/file/d/1CloqjpIbZWsR15mRKps6acaYk0oxW1WP/view?usp=sharing