diff --git a/BuildTools/macosx/install_name.py b/BuildTools/macosx/install_name.py
index d41dc2f3..e6aab873 100644
--- a/BuildTools/macosx/install_name.py
+++ b/BuildTools/macosx/install_name.py
@@ -31,12 +31,16 @@ def ProcessDependency(dir_path, dylib_name):
             copyitem = '/usr/local/opt/icu4c/lib/libicuuc.71.dylib'
         if item == '@loader_path/libicuuc.72.dylib':
             copyitem = '/usr/local/opt/icu4c/lib/libicuuc.72.dylib'
+        if item == '@loader_path/libicuuc.73.dylib':
+            copyitem = '/usr/local/opt/icu4c/lib/libicuuc.73.dylib'
         if item == '@loader_path/libicudata.70.dylib':
             copyitem = '/usr/local/opt/icu4c/lib/libicudata.70.dylib'
         if item == '@loader_path/libicudata.71.dylib':
             copyitem = '/usr/local/opt/icu4c/lib/libicudata.71.dylib'
         if item == '@loader_path/libicudata.72.dylib':
             copyitem = '/usr/local/opt/icu4c/lib/libicudata.72.dylib'
+        if item == '@loader_path/libicudata.73.dylib':
+            copyitem = '/usr/local/opt/icu4c/lib/libicudata.73.dylib'
         if item == '@loader_path/libbrotlicommon.1.dylib':
             copyitem = '/usr/local/opt/brotli/lib/libbrotlicommon.1.dylib'
         if item == '@rpath/libIlmThread-3_1.30.dylib':
diff --git a/BuildTools/windows/installer/32bit/GeoDa-win7+.iss b/BuildTools/windows/installer/32bit/GeoDa-win7+.iss
index 93b00618..17df7900 100644
--- a/BuildTools/windows/installer/32bit/GeoDa-win7+.iss
+++ b/BuildTools/windows/installer/32bit/GeoDa-win7+.iss
@@ -27,6 +27,7 @@ Name: "en"; MessagesFile: "compiler:Default.isl"
 Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
 Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
 Name: "portuguese"; MessagesFile: "compiler:Languages\Portuguese.isl"
+Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 
 [dirs]
 Name: "{app}"; Check: InitializeSetup
@@ -202,6 +203,10 @@ begin
     begin
       langCode := '153';  // Portuguese
     end;
+    5:
+    begin
+      langCode := '79';  // French
+    end;
   end;
 end;
 
@@ -228,6 +233,7 @@ begin
   ComboBox.Items.Add('Spanish');
   ComboBox.Items.Add('Russian');
   ComboBox.Items.Add('Portuguese');
+  ComboBox.Items.Add('French');
   ComboBox.ItemIndex := 0;
   ComboBox.OnChange := @ComboBoxChange;
   langCode := '58';
diff --git a/BuildTools/windows/installer/32bit/GeoDa.iss b/BuildTools/windows/installer/32bit/GeoDa.iss
index 05f6b633..28bb5586 100644
--- a/BuildTools/windows/installer/32bit/GeoDa.iss
+++ b/BuildTools/windows/installer/32bit/GeoDa.iss
@@ -27,6 +27,7 @@ Name: "en"; MessagesFile: "compiler:Default.isl"
 Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
 Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
 Name: "portuguese"; MessagesFile: "compiler:Languages\Portuguese.isl"
+Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 
 [dirs]
 Name: "{app}";  Permissions: everyone-full; Check: InitializeSetup
@@ -201,6 +202,10 @@ begin
     begin
       langCode := '153';  // Portuguese
     end;
+    5:
+    begin
+      langCode := '79';  // French
+    end;
   end;
 end;
 
@@ -227,6 +232,7 @@ begin
   ComboBox.Items.Add('Spanish');
   ComboBox.Items.Add('Russian');
   ComboBox.Items.Add('Portuguese');
+  ComboBox.Items.Add('French');
   ComboBox.ItemIndex := 0;
   ComboBox.OnChange := @ComboBoxChange;
   langCode := '58';
diff --git a/BuildTools/windows/installer/64bit/GeoDa-win7+.iss b/BuildTools/windows/installer/64bit/GeoDa-win7+.iss
index aaf014c8..b6a7815a 100644
--- a/BuildTools/windows/installer/64bit/GeoDa-win7+.iss
+++ b/BuildTools/windows/installer/64bit/GeoDa-win7+.iss
@@ -36,9 +36,11 @@ ShowLanguageDialog=yes
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
+Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
 Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
 Name: "portuguese"; MessagesFile: "compiler:Languages\Portuguese.isl"
+Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 
 [dirs]
 Name: "{app}"; Check: InitializeSetup
@@ -215,6 +217,10 @@ begin
     begin
       langCode := '153';  // Portuguese
     end;
+    5:
+    begin
+      langCode := '79';  // French
+    end;
   end;
 end;
 
@@ -241,6 +247,7 @@ begin
   ComboBox.Items.Add('Spanish');
   ComboBox.Items.Add('Russian');
   ComboBox.Items.Add('Portuguese');
+  ComboBox.Items.Add('French');
   ComboBox.ItemIndex := 0;
   ComboBox.OnChange := @ComboBoxChange;
   langCode := '58';
diff --git a/BuildTools/windows/installer/64bit/GeoDa.iss b/BuildTools/windows/installer/64bit/GeoDa.iss
index cfa5d3f2..e1f8a254 100644
--- a/BuildTools/windows/installer/64bit/GeoDa.iss
+++ b/BuildTools/windows/installer/64bit/GeoDa.iss
@@ -39,6 +39,7 @@ Name: "english"; MessagesFile: "compiler:Default.isl"
 Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
 Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
 Name: "portuguese"; MessagesFile: "compiler:Languages\Portuguese.isl"
+Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 
 [dirs]
 Name: "{app}";  Permissions: everyone-full; Check: InitializeSetup
@@ -214,6 +215,10 @@ begin
     begin
       langCode := '153';  // Portuguese
     end;
+    5:
+    begin
+      langCode := '79';  // French
+    end;
   end;
 end;
 
@@ -240,6 +245,7 @@ begin
   ComboBox.Items.Add('Spanish');
   ComboBox.Items.Add('Russian');
   ComboBox.Items.Add('Portuguese');
+  ComboBox.Items.Add('French');
   ComboBox.ItemIndex := 0;
   ComboBox.OnChange := @ComboBoxChange;
   langCode := '58';
diff --git a/DialogTools/PreferenceDlg.cpp b/DialogTools/PreferenceDlg.cpp
index 021132ad..41b4a108 100644
--- a/DialogTools/PreferenceDlg.cpp
+++ b/DialogTools/PreferenceDlg.cpp
@@ -270,12 +270,14 @@ void PreferenceDlg::Init()
     wxStaticText* lbl_txt113 = new wxStaticText(vis_page, wxID_ANY, lbl113);
     cmb113 = new wxComboBox(vis_page, wxID_ANY, "", pos, wxDefaultSize, 0,
                             NULL, wxCB_READONLY);
-    cmb113->Append("");
-    cmb113->Append("English");
-    cmb113->Append("Chinese (Simplified)");
-    cmb113->Append("Spanish");
-    cmb113->Append("Russian");
-    cmb113->Append("Portuguese");
+    cmb113->Append(wxEmptyString);
+    cmb113->Append(GdaConst::gda_lang_chinese);
+    cmb113->Append(GdaConst::gda_lang_english);
+    cmb113->Append(GdaConst::gda_lang_french);
+    cmb113->Append(GdaConst::gda_lang_portuguese);
+    cmb113->Append(GdaConst::gda_lang_russian);
+    cmb113->Append(GdaConst::gda_lang_spanish);
+    
     cmb113->Bind(wxEVT_COMBOBOX, &PreferenceDlg::OnChooseLanguage, this);
     //cmb113->Disable();
     
@@ -940,17 +942,20 @@ void PreferenceDlg::OnChooseLanguage(wxCommandEvent& ev)
     wxConfigBase * config = new wxFileConfig("GeoDa", wxEmptyString, configPath);
     
     if (lan_sel > 0) {
+        wxString sel_lan_name = cmb113->GetString(lan_sel);
         long language = wxLANGUAGE_UNKNOWN;
-        if (lan_sel == 1) {
+        if (sel_lan_name == GdaConst::gda_lang_english) {
             language = wxLANGUAGE_ENGLISH + 1;
-        } else if (lan_sel == 2) {
+        } else if (sel_lan_name == GdaConst::gda_lang_chinese) {
             language = 45;//wxLANGUAGE_CHINESE + 1;
-        } else if (lan_sel == 3) {
+        } else if (sel_lan_name == GdaConst::gda_lang_spanish) {
             language = 179;//wxLANGUAGE_SPANISH;
-        } else if (lan_sel == 4) {
-            language = wxLANGUAGE_RUSSIAN;
-        } else if (lan_sel == 5) {
-            language = wxLANGUAGE_PORTUGUESE;
+        } else if (sel_lan_name == GdaConst::gda_lang_russian) {
+            language = wxLANGUAGE_RUSSIAN; // 159
+        } else if (sel_lan_name == GdaConst::gda_lang_portuguese) {
+            language = wxLANGUAGE_PORTUGUESE; // 153
+        } else if (sel_lan_name == GdaConst::gda_lang_french) {
+            language = wxLANGUAGE_FRENCH; // 79
         }
         config->DeleteEntry("Translation");
         config->SetPath("Translation");
diff --git a/GdaConst.cpp b/GdaConst.cpp
index 3a9eadb8..9458fa61 100644
--- a/GdaConst.cpp
+++ b/GdaConst.cpp
@@ -428,6 +428,13 @@ const wxString GdaConst::gda_lbl_2sigma = "> 2Std";
 const wxPen* GdaConst::default_myshape_pen=0;
 const wxBrush* GdaConst::default_myshape_brush=0;
 
+const wxString GdaConst::gda_lang_english = "English";
+const wxString GdaConst::gda_lang_chinese = "Chinese (Simplified)";
+const wxString GdaConst::gda_lang_french = "French";
+const wxString GdaConst::gda_lang_portuguese = "Portuguese";
+const wxString GdaConst::gda_lang_russian = "Russian";
+const wxString GdaConst::gda_lang_spanish = "Spanish";
+
 //background color -- this is light gray
 const wxColour GdaConst::backColor(192, 192, 192);
 // background color -- this is light gray
diff --git a/GdaConst.h b/GdaConst.h
index b059f55b..b05c0b2c 100644
--- a/GdaConst.h
+++ b/GdaConst.h
@@ -240,6 +240,14 @@ class GdaConst {
     static const wxString gda_lbl_1sigma_2sigma;
     static const wxString gda_lbl_2sigma;
     
+    // Languages
+    static const wxString gda_lang_english;
+    static const wxString gda_lang_chinese;
+    static const wxString gda_lang_french;
+    static const wxString gda_lang_portuguese;
+    static const wxString gda_lang_russian;
+    static const wxString gda_lang_spanish;
+    
 	// Preferences
     static double gda_autoweight_stop;
     static bool gda_draw_map_labels;