One that comes to mind for me, with a specific Google app: Google removed SMS from newer versions of their Hangouts app over a year ago. I kept the program at t

One that comes to mind for me, with a specific Google app: Google removed SMS from newer versions of their Hangouts app over a year ago. I kept the program at the last version to have SMS. Pop-ups appeared periodically asking me to update the app. After about a year, launching the app starting showing a page "This version of Hangouts is no longer supported. To continue, please update the app." Of course, at that point, I moved to one of their currently-supported apps...but it means that my Hangouts conversations are in a different place than my SMS conversations.