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--- a/packaging/debian/debian/control
+++ b/packaging/debian/debian/control
@@ -49,6 +49,8 @@
 
 Package: recollcmd
 Architecture: any
+Breaks: recoll (<< 1.23.4)
+Replaces: recoll (<< 1.23.4)
 Depends: python, ${misc:Depends}, ${shlibs:Depends}
 Recommends: python-recoll, aspell, xdg-utils, xsltproc,
             python-libxml2, python-libxslt1
@@ -67,6 +69,8 @@
  
 Package: recollgui
 Architecture: any
+Breaks: recoll (<< 1.23.4)
+Replaces: recoll (<< 1.23.4)
 Depends: recollcmd (= ${binary:Version}),
          ${misc:Depends},
          ${shlibs:Depends}