diff --git a/amr_report.cpp b/amr_report.cpp
index f968c52..0b79949 100644
--- a/amr_report.cpp
+++ b/amr_report.cpp
@@ -838,7 +838,7 @@ struct BlastAlignment : Alignment
         return getGeneSymbol ();
       string s;
       for (const BlastAlignment* fusion : fusions)
-        add (s, "/", fusion->getGeneSymbol ());
+        add (s, "/" /*fusion_infix*/, fusion->getGeneSymbol ());  // PD-5155 ??
       return s;
     }
   string fusion2famIds () const
@@ -846,7 +846,7 @@ struct BlastAlignment : Alignment
         return famId;
       string s;
       for (const BlastAlignment* fusion : fusions)
-        add (s, "/", fusion->famId);
+        add (s, fusion_infix, fusion->famId);
       return s;
     }
 private:
diff --git a/amrfinder.cpp b/amrfinder.cpp
index 7d6d95b..dd876de 100644
--- a/amrfinder.cpp
+++ b/amrfinder.cpp
@@ -33,6 +33,9 @@
 * Dependencies: NCBI BLAST, HMMer, libcurl, gunzip (optional)
 *
 * Release changes:
+*   4.0.1   10/22/2024 PD-5155  "::" as a fusion infix for hierarchy_node
+*                      PD-5085  Change column "Element length" to "Target length"
+*                      PD-5085  StxTyper version 1.0.26
 *   4.0.0   10/22/2024 PD-5156  StxTyper etc.
 *   3.13.3  09/11/2024          Instruction for -gff: "Locations are in the --nucleotide file."
 *                               StxTyper version 1.0.25
@@ -330,7 +333,7 @@ using namespace GFF_sp;
 const string dataVer_min ("2024-08-14.2");
   // 3.12: "2023-12-15.2"
   // 3.11: "2021-02-18.1"  
-const string stxTyperVersion ("1.0.25");  
+const string stxTyperVersion ("1.0.26");  
 
 
 
diff --git a/columns.hpp b/columns.hpp
index 4bce600..cf25a92 100644
--- a/columns.hpp
+++ b/columns.hpp
@@ -52,7 +52,7 @@ constexpr const char* class_colName = "Class";
 constexpr const char* subclass_colName = "Subclass";
 //        
 constexpr const char* method_colName = "Method";
-constexpr const char* targetLen_colName = "Element length";  // was: "Target length" ??
+constexpr const char* targetLen_colName = "Target length";  // was: "Element length" (temporarily)
 constexpr const char* refLen_colName = "Reference sequence length";
 constexpr const char* refCov_colName = "% Coverage of reference";
 constexpr const char* refIdent_colName = "% Identity to reference";
@@ -62,3 +62,8 @@ constexpr const char* closestRefName_colName = "Closest reference name";
 constexpr const char* hmmAccession_colName = "HMM accession";
 constexpr const char* hmmDescr_colName = "HMM description";
 constexpr const char* hierarchyNode_colName = "Hierarchy node";
+
+
+// PD-5155
+constexpr const char* fusion_infix = "::";  // was: "/"
+  
\ No newline at end of file
diff --git a/stxtyper b/stxtyper
index 94ac374..b845df0 160000
--- a/stxtyper
+++ b/stxtyper
@@ -1 +1 @@
-Subproject commit 94ac374d0eca8e6d97d198c1db8cf26baa0c785c
+Subproject commit b845df0808194a834471b382ae2b7c263024d009
diff --git a/version.txt b/version.txt
index fcdb2e1..1454f6e 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-4.0.0
+4.0.1