Description:
The "What is New" / "nutshell" manual page, which summarizes important items from the release notes, has not been updated for the two most recent 9.x releases. See https://dev.mysql.com/doc/refman/9.7/en/mysql-nutshell.html
The current contents of this page actually describes changes made in MySQL 9.5 six months ago, just with all the instances of "9.5" replaced with "9.7".
This was likewise the case three months ago for 9.6; it is also showing the 9.5 content, but with all instances of "9.5" replaced with "9.6".
Finally, the version selector drop-down for this page does not seem to function properly for 9.0 thru 9.5; these all redirect to 9.6 (which again is actually showing contents from 9.5).
How to repeat:
Visit https://dev.mysql.com/doc/refman/9.7/en/mysql-nutshell.html
Suggested fix:
The 9.7 version of the page would probably be more useful as a summary of changes since the previous LTS, 8.4; this is how the 8.4 version is designed (summarizes changes since 8.0)
It's not really clear how the Innovation release versions of this page should operate moving forwards though, so the mixup here is definitely understandable!