diff --git a/gramps/gui/plug/export/_exportassistant.py b/gramps/gui/plug/export/_exportassistant.py
index f85e6291f..4125b5b05 100644
--- a/gramps/gui/plug/export/_exportassistant.py
+++ b/gramps/gui/plug/export/_exportassistant.py
@@ -160,8 +160,7 @@ class ExportAssistant(Gtk.Assistant, ManagedWindow) :
         label = Gtk.Label(label=self.get_intro_text())
         label.set_line_wrap(True)
         label.set_use_markup(True)
-        if (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3, 10):
-            label.set_max_width_chars(60)
+        label.set_max_width_chars(60)
         
         image = Gtk.Image()
         image.set_from_file(SPLASH)
diff --git a/gramps/gui/views/listview.py b/gramps/gui/views/listview.py
index 856692b28..fd08bfa32 100644
--- a/gramps/gui/views/listview.py
+++ b/gramps/gui/views/listview.py
@@ -633,7 +633,7 @@ class ListView(NavigationView):
         if same_col:
             # activate when https://bugzilla.gnome.org/show_bug.cgi?id=684558
             # is resolved
-            if False and (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3,8):
+            if False:
                 self.model.reverse_order()
             else:
                 ## GTK 3.6 rows_reordered not exposed by gi, we need to reconnect
diff --git a/gramps/gui/views/treemodels/treebasemodel.py b/gramps/gui/views/treemodels/treebasemodel.py
index 25d6d0502..8abfbae35 100644
--- a/gramps/gui/views/treemodels/treebasemodel.py
+++ b/gramps/gui/views/treemodels/treebasemodel.py
@@ -736,7 +736,6 @@ class TreeBaseModel(GObject.GObject, Gtk.TreeModel):
         rows_reordered, so to propagate the change to the view, you need to
         reattach the model to the view. 
         """
-        self.GTK38PLUS = (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3,8)
         self.__reverse = not self.__reverse
         top_node = self.tree[None]
         self._reverse_level(top_node)
@@ -758,8 +757,7 @@ class TreeBaseModel(GObject.GObject, Gtk.TreeModel):
                 path = self.do_get_path(iternode)
             # activate when https://bugzilla.gnome.org/show_bug.cgi?id=684558
             # is resolved
-            if False and self.GTK38PLUS:
-                ##rows_reordered is only exposed in gi starting GTK 3.8
+            if False:
                 self.rows_reordered(path, iter, rows)
             if self.nrgroups > 1:
                 for child in node.children:
diff --git a/gramps/gui/widgets/interactivesearchbox.py b/gramps/gui/widgets/interactivesearchbox.py
index 8b7014aeb..920ef8862 100644
--- a/gramps/gui/widgets/interactivesearchbox.py
+++ b/gramps/gui/widgets/interactivesearchbox.py
@@ -162,11 +162,7 @@ class InteractiveSearchBox():
         vbox.set_border_width(3)
 
         """ add entry """
-        # To be change by Gtk 3.10 SearchEntry when agreed
-        if (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3, 6):
-            self._search_entry = Gtk.SearchEntry()
-        else:
-            self._search_entry = Gtk.Entry()
+        self._search_entry = Gtk.SearchEntry()
         self._search_entry.show()
         self._search_entry.connect("populate-popup", self._disable_popdown)
         self._search_entry.connect("activate", self._activate)
diff --git a/gramps/gui/widgets/multitreeview.py b/gramps/gui/widgets/multitreeview.py
index b9f657ff4..e3e8221fa 100644
--- a/gramps/gui/widgets/multitreeview.py
+++ b/gramps/gui/widgets/multitreeview.py
@@ -43,19 +43,6 @@ class MultiTreeView(Gtk.TreeView):
         self.connect('key_press_event', self.key_press_event)
         self.defer_select = False
 
-    if (Gtk.get_major_version(), Gtk.get_minor_version()) < (3, 8):
-        __grid_lines_remove_vertical = {
-            Gtk.TreeViewGridLines.NONE : Gtk.TreeViewGridLines.NONE,
-            Gtk.TreeViewGridLines.HORIZONTAL : Gtk.TreeViewGridLines.HORIZONTAL,
-            Gtk.TreeViewGridLines.VERTICAL : Gtk.TreeViewGridLines.NONE,
-            Gtk.TreeViewGridLines.BOTH : Gtk.TreeViewGridLines.HORIZONTAL
-        }
-        def set_grid_lines(self, grid_lines):
-            if self.get_direction() == Gtk.TextDirection.RTL:
-                # Work around a gtk RTL bug, see #6871
-                grid_lines = MultiTreeView.__grid_lines_remove_vertical[grid_lines]
-            super(MultiTreeView, self).set_grid_lines(grid_lines)
-
     def key_press_event(self, widget, event):
         if event.type == Gdk.EventType.KEY_PRESS:
             if event.keyval == Gdk.KEY_Delete:
diff --git a/gramps/plugins/tool/mediamanager.py b/gramps/plugins/tool/mediamanager.py
index 58acf27c3..5355ce16b 100644
--- a/gramps/plugins/tool/mediamanager.py
+++ b/gramps/plugins/tool/mediamanager.py
@@ -208,8 +208,7 @@ class IntroductionPage(Gtk.Box):
         label = Gtk.Label(label=self.__get_intro_text())
         label.set_line_wrap(True)
         label.set_use_markup(True)
-        if (Gtk.get_major_version(), Gtk.get_minor_version()) >= (3, 10):
-            label.set_max_width_chars(60)
+        label.set_max_width_chars(60)
 
         self.pack_start(image, False, False, 0)
         self.pack_start(label, False, False, 5)