On Thu, 15 Apr 2004, rms@gnu.org wrote:

      > * Installation Changes in Emacs 21.4
> 
+ ** next-error and previous-error were moved from compile.el to...
> 
> That is internal, not worth mentioning in NEWS.
> 
>     + ** occur-mode can advance to the next/previous error with next-error
>     +    and previous-error
> 
> That is the feature worth mentioning.  It should be in the following
> section, "Changes in Emacs 21.4", not in the Installation Changes
> section.

Both changes were done.  Latest patch attached.

Ted