gnus-summary-goto-unread

gnus-summary-goto-unread is a variable defined in `gnus-sum.el'.
Its value is

nil

Documentation:
*If t, many commands will go to the next unread article.
This applies to marking commands as well as other commands that
"naturally" select the next article, like, for instance, `SPC' at
the end of an article.

If nil, the marking commands do NOT go to the next unread article
(they go to the next article instead). If `never', commands that
usually go to the next unread article, will go to the next article,
whether it is read or not.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.