1720
It's official: Smartphones will need to have replaceable batteries by 2027
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
From what I got from the article posted a few days ago, I believe it is by large a sustainability/climate effort, targeting all kinds of industry machinery batteries as well as phones. There is likely a bonus for end user usability, but that is relatively incidental.