Conflicts/Replaces: Do I need to use them?

[karlheg@cathcart.sysc.pdx.edu (Karl M. Hegbloom)]

 Do I need the Conficts and Replaces fields in this and other Package
 entries where there was one like it in the previous XEmacs version?
 I think I do; tell me if I'm wrong.

8<------------------------------------------------------------>8
Package: @PROGNAME@@MAJVERSION@@SUBNAME@-mule-canna-wnn
Architecture: any
Depends: ${mule-x:Depends}, ${xemacs:Depends}, ${shlibs-${F:Package}:Depends}
Suggests: edict, ${mule-fonts:Suggests}
Provides: emacsen, @PROGNAME@@MAJVERSION@@SUBNAME@
Conflicts: xemacs20-mule-canna-wnn
Replaces: xemacs20-mule-canna-wnn
Description: All Purpose Editing Environment  -- Mule, with canna and wnn.
 This package contains the actual binary used to run XEmacs.  It
 depends on several other packages for lisp, support binaries, and
 data files.
 .
 This binary has support for the Chinese, Japanese, and Korean input
 extensions Canna and WNN compiled in.
 .
 Mule is an extension to (x)emacs that allows for the display and
 input of non-latin-1 characters.
8<------------------------------------------------------------>8