User Manual still shows version 14 after upgrading

After updating 14->15 and 15->16 I see that the User Manual still shows version 14. This is the User Manual that you get with the URL https://nextcloud.example.com/index.php/settings/help

Is there something I need to update?

The rest of the Nextcloud installation shows that it is version 16. For example,

# sudo -u apache /opt/rh/rh-php72/root/usr/bin/php -c .user.ini ./occ -V
The current PHP memory limit is below the recommended value of 512MB.
Nextcloud 16.0.1

And the Administration / Overview page shows Version Nextcloud 16.0.1

For example the core/doc/user/_sources/whats_new.rst.txt contains this

===========================================
What's new for users in Nextcloud |version|
===========================================

On the web page the text is: What’s new for users in Nextcloud 14
In other words the |version| is not properly translated to 16. That makes me wonder if there is a wrong value of version somewhere in my setup.

afaik the usermanual in your directory is set by the skeleton… and is only used as soon as you set-up a new user. so if you’d upgade your server all existing users will stay with the “old” manual.

Perhaps you mean Nextcloud Manual.pdf? That’s an old manual, in my case that is the NC 13 manual.

This is not what I mean. I’m talking about the User Manual that you get when you go to /index.php/settings/help.