diff --git a/Dockerfile b/Dockerfile
index ff070a43..2ba4b646 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,6 @@
 # Use the libyui/devel image as the base
-FROM libyui/devel
+FROM registry.opensuse.org/devel/libraries/libyui/containers/libyui-devel:latest
+
+RUN  zypper install -y gtk3-devel
 
 COPY . /usr/src/app
diff --git a/VERSION.cmake b/VERSION.cmake
index 8191c56d..f91765f0 100644
--- a/VERSION.cmake
+++ b/VERSION.cmake
@@ -1,5 +1,5 @@
 SET( VERSION_MAJOR "2" )
-SET( VERSION_MINOR "47" )
+SET( VERSION_MINOR "48" )
 SET( VERSION_PATCH "0" )
 SET( VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}${VERSION_SHA1}" )
 
diff --git a/package/libyui-gtk-doc.spec b/package/libyui-gtk-doc.spec
index f8705451..156a0187 100644
--- a/package/libyui-gtk-doc.spec
+++ b/package/libyui-gtk-doc.spec
@@ -20,7 +20,7 @@
 %define so_version 11
 
 Name:           %{parent}-doc
-Version:        2.47.0
+Version:        2.48.0
 Release:        0
 Source:         %{parent}-%{version}.tar.bz2
 
diff --git a/package/libyui-gtk.changes b/package/libyui-gtk.changes
index 11aac8aa..635f82cd 100644
--- a/package/libyui-gtk.changes
+++ b/package/libyui-gtk.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu May 28 20:19:07 CEST 2020 - anaselli@linux.it
+
+- Added missing abstract methods (copy of Qt behavior)
+- Fixed trevis building
+- 2.48.0
+
 -------------------------------------------------------------------
 Thu May 28 18:09:47 CEST 2020 - besser82@fedoraproject.org
 
@@ -33,7 +40,6 @@ Thu May 28 18:09:47 CEST 2020 - besser82@fedoraproject.org
 - 2.47.0
 
 -------------------------------------------------------------------
-
 Wed Dec 11 09:54:55 UTC 2019 - Rodion Iafarov <riafarov@suse.com>
 
 - Increase SO version to 11 (bsc#1132247)
diff --git a/package/libyui-gtk.spec b/package/libyui-gtk.spec
index f5832078..14a30d3b 100644
--- a/package/libyui-gtk.spec
+++ b/package/libyui-gtk.spec
@@ -17,7 +17,7 @@
 
 
 Name:           libyui-gtk
-Version:        2.47.0
+Version:        2.48.0
 Release:        0
 Source:         %{name}-%{version}.tar.bz2
 
diff --git a/src/YGDumbTab.cc b/src/YGDumbTab.cc
index c0a420d2..cf56698d 100644
--- a/src/YGDumbTab.cc
+++ b/src/YGDumbTab.cc
@@ -154,6 +154,15 @@ class YGDumbTab : public YDumbTab, public YGWidget
 		pThis->syncTabPage();
 	}
 
+	// NOTE copy of Qt one
+	void activate()
+        {
+           // send an activation event for this widget
+           if ( notify() )
+               YGUI::ui()->sendEvent( new YWidgetEvent( this,YEvent::Activated ) );
+        }
+
+
 	YGWIDGET_IMPL_CONTAINER (YDumbTab)
 };
 
diff --git a/src/YGMenuButton.cc b/src/YGMenuButton.cc
index 0f267e94..719544e7 100644
--- a/src/YGMenuButton.cc
+++ b/src/YGMenuButton.cc
@@ -64,6 +64,14 @@ class YGMenuButton : public YMenuButton, public YGWidget
 		ygtk_menu_button_set_popup (YGTK_MENU_BUTTON (getWidget()), menu);
 	}
 
+        // NOTE copy of Qt one
+        void activateItem( YMenuItem * item )
+        {
+                if ( item )
+                    YGUI::ui()->sendEvent( new YMenuEvent( item ) );
+        }
+
+
 	YGWIDGET_IMPL_COMMON (YMenuButton)
 };
 
diff --git a/src/YGText.cc b/src/YGText.cc
index 3fcaf1a3..4a5a9581 100644
--- a/src/YGText.cc
+++ b/src/YGText.cc
@@ -273,6 +273,13 @@ class YGRichText : public YRichText, YGScrolledWidget
 	virtual unsigned int getMinSize (YUIDimension dim)
 	{ return shrinkable() ? 10 : 100; }
 
+        // NOTE copy of Qt one
+        void activateLink( const std::string & url )
+        {
+            YGUI::ui()->sendEvent( new YMenuEvent( url ) );
+        }
+
+
 	YGWIDGET_IMPL_COMMON (YRichText)
 };
 
diff --git a/src/YGTreeView.cc b/src/YGTreeView.cc
index 90a3c859..6540812d 100644
--- a/src/YGTreeView.cc
+++ b/src/YGTreeView.cc
@@ -337,6 +337,7 @@ class YGTreeView : public YGScrolledWidget, public YGSelectionStore
 			gtk_widget_queue_draw (pThis->getWidget());
 	}
 
+
 	static void right_click_cb (YGtkTreeView *view, gboolean outreach, YGTreeView *pThis)
 	{ pThis->emitEvent (YEvent::ContextMenuActivated); }
 };
@@ -833,6 +834,15 @@ class YGTree : public YTree, public YGTreeView
 		}
 #endif
 
+	// NOTE copy of Qt one
+	void activate()
+        {
+            // send an activation event for this widget
+            if ( notify() )
+                YGUI::ui()->sendEvent( new YWidgetEvent( this,YEvent::Activated ) );
+        }
+
+
 	YGLABEL_WIDGET_IMPL (YTree)
 	YGSELECTION_WIDGET_IMPL (YTree)
 };