As designed What's New page displays read content

[m1ne]

Affected version

2.x

Any thread you have read still displays on the What's New page, it does not display on the New Posts page.
The thread is no longer new to the reader so it shouldn't be displayed.

 

[Chris D]

It's a widget and can be configured to display differently to your preference, but note that it is designed to be "Latest posts" rather than "New posts" so it doesn't take read marking into consideration.