debian/changelog

+diamond-aligner (0.9.29+dfsg-4) unstable; urgency=medium
+
+  * Breaks+Replaces: diamond
+    Closes: #948849
+
+ -- Andreas Tille <tille@debian.org>  Tue, 14 Jan 2020 08:03:08 +0100
+
 diamond-aligner (0.9.29+dfsg-3) unstable; urgency=medium
 
   * Team upload.

debian/control

@@ -16,6 +16,8 @@ Architecture: any
 Depends: ${shlibs:Depends},
          ${misc:Depends}
 Recommends: med-config (>= 2.1)
+Breaks: diamond
+Replaces: diamond
 Description: accelerated BLAST compatible local sequence aligner
  DIAMOND is a sequence aligner for protein and translated DNA searches
  and functions as a drop-in replacement for the NCBI BLAST software