diff --git a/include/wx/dc.h b/include/wx/dc.h
index 302838ae24..f731326456 100644
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -418,6 +418,11 @@ public:
     void SetClippingRegion(const wxRegion& region)
         { DoSetClippingRegionAsRegion(region); }
 
+#if wxABI_VERSION >= 20811
+    void SetDeviceClippingRegion(const wxRegion& region)
+        { DoSetClippingRegionAsRegion(region); }
+#endif
+
     virtual void DestroyClippingRegion() { ResetClipping(); }
 
     void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
diff --git a/include/wx/event.h b/include/wx/event.h
index 48f0a0b81c..e9ee49a8db 100644
--- a/include/wx/event.h
+++ b/include/wx/event.h
@@ -1442,6 +1442,9 @@ public:
 
     void SetShow(bool show) { m_show = show; }
     bool GetShow() const { return m_show; }
+#if wxABI_VERSION >= 20811
+    bool IsShown() const { return GetShow(); }
+#endif
 
     virtual wxEvent *Clone() const { return new wxShowEvent(*this); }
 
@@ -1468,7 +1471,9 @@ public:
 
     // return true if the frame was iconized, false if restored
     bool Iconized() const { return m_iconized; }
-
+#if wxABI_VERSION >= 20811
+    bool IsIconized() const { return Iconized(); }
+#endif
     virtual wxEvent *Clone() const { return new wxIconizeEvent(*this); }
 
 protected:
diff --git a/include/wx/xml/xml.h b/include/wx/xml/xml.h
index 4d33a5cb8d..863cd26190 100644
--- a/include/wx/xml/xml.h
+++ b/include/wx/xml/xml.h
@@ -159,6 +159,26 @@ public:
     void SetProperties(wxXmlProperty *prop) { m_properties = prop; }
     virtual void AddProperty(wxXmlProperty *prop);
 
+#if wxABI_VERSION >= 20811
+    wxString GetAttribute(const wxString& attrName,
+                         const wxString& defaultVal) const
+    {
+        return GetPropVal(attrName, defaultVal);
+    }
+    bool GetAttribute(const wxString& attrName, wxString *value) const
+    {
+        return GetPropVal(attrName, value);
+    }
+    void AddAttribute(const wxString& attrName, const wxString& value)
+    {
+        AddProperty(attrName, value);
+    }
+    wxXmlProperty* GetAttributes() const
+    { 
+        return GetProperties();
+    }
+#endif // wx >= 2.8.11
+
 private:
     wxXmlNodeType m_type;
     wxString m_name;
diff --git a/version-script.in b/version-script.in
index 2ae36cf235..1f97fee8af 100644
--- a/version-script.in
+++ b/version-script.in
@@ -23,6 +23,14 @@
 # released with the generic branch version due to the final wildcard below,
 # and once released its version cannot be changed.
 
+# public symbols added in 2.8.10 (please keep in alphabetical order):
+@WX_VERSION_TAG@.11 {
+        *wxDC*SetDeviceClippingRegion*;
+        *wxShowEvent*IsShown*;
+        *wxIconizeEvent*IsIconized*;
+        *wxXmlNode*Attribute*;
+};
+
 # public symbols added in 2.8.10 (please keep in alphabetical order):
 @WX_VERSION_TAG@.10 {
         *wxAboutDialog*GetCopyrightToDisplay*;