diff --git a/extras/Projucer/Source/Application/Windows/jucer_PIPCreatorWindowComponent.h b/extras/Projucer/Source/Application/Windows/jucer_PIPCreatorWindowComponent.h
index caa591da0d..046663bade 100644
--- a/extras/Projucer/Source/Application/Windows/jucer_PIPCreatorWindowComponent.h
+++ b/extras/Projucer/Source/Application/Windows/jucer_PIPCreatorWindowComponent.h
@@ -203,11 +203,6 @@ private:
         }
     }
 
-    void valueTreeChildAdded (ValueTree&, ValueTree&) override           {}
-    void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override    {}
-    void valueTreeChildOrderChanged (ValueTree&, int, int) override      {}
-    void valueTreeParentChanged (ValueTree&) override                    {}
-
     //==============================================================================
     String getFormattedMetadataString() const noexcept
     {
diff --git a/extras/Projucer/Source/LiveBuildEngine/jucer_CompileEngineClient.cpp b/extras/Projucer/Source/LiveBuildEngine/jucer_CompileEngineClient.cpp
index 2875545060..782ffc6216 100644
--- a/extras/Projucer/Source/LiveBuildEngine/jucer_CompileEngineClient.cpp
+++ b/extras/Projucer/Source/LiveBuildEngine/jucer_CompileEngineClient.cpp
@@ -310,7 +310,6 @@ private:
     void valueTreeChildAdded (ValueTree&, ValueTree&) override                   { projectStructureChanged(); }
     void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override            { projectStructureChanged(); }
     void valueTreeParentChanged (ValueTree&) override                            { projectStructureChanged(); }
-    void valueTreeChildOrderChanged (ValueTree&, int, int) override              {}
 
     String getGlobalDefs()
     {
diff --git a/extras/Projucer/Source/Project/UI/Sidebar/jucer_ExporterTreeItems.h b/extras/Projucer/Source/Project/UI/Sidebar/jucer_ExporterTreeItems.h
index c574ad7515..33a4a326b8 100644
--- a/extras/Projucer/Source/Project/UI/Sidebar/jucer_ExporterTreeItems.h
+++ b/extras/Projucer/Source/Project/UI/Sidebar/jucer_ExporterTreeItems.h
@@ -369,8 +369,6 @@ private:
     ValueTree exportersTree;
 
     //==========================================================================
-    void valueTreePropertyChanged (ValueTree&, const Identifier&) override        {}
-    void valueTreeParentChanged (ValueTree&) override                             {}
     void valueTreeChildAdded (ValueTree& parentTree, ValueTree&) override         { refreshIfNeeded (parentTree); }
     void valueTreeChildRemoved (ValueTree& parentTree, ValueTree&, int) override  { refreshIfNeeded (parentTree); }
     void valueTreeChildOrderChanged (ValueTree& parentTree, int, int) override    { refreshIfNeeded (parentTree); }
diff --git a/extras/Projucer/Source/Project/UI/Sidebar/jucer_FileTreeItems.h b/extras/Projucer/Source/Project/UI/Sidebar/jucer_FileTreeItems.h
index 13d7d04300..a2868978aa 100644
--- a/extras/Projucer/Source/Project/UI/Sidebar/jucer_FileTreeItems.h
+++ b/extras/Projucer/Source/Project/UI/Sidebar/jucer_FileTreeItems.h
@@ -245,7 +245,6 @@ public:
     void valueTreeChildAdded (ValueTree& parentTree, ValueTree&) override         { treeChildrenChanged (parentTree); }
     void valueTreeChildRemoved (ValueTree& parentTree, ValueTree&, int) override  { treeChildrenChanged (parentTree); }
     void valueTreeChildOrderChanged (ValueTree& parentTree, int, int) override    { treeChildrenChanged (parentTree); }
-    void valueTreeParentChanged (ValueTree&) override {}
 
     //==============================================================================
     bool mightContainSubItems() override                { return item.getNumChildren() > 0; }
diff --git a/extras/Projucer/Source/Project/UI/Sidebar/jucer_ProjectTreeItemBase.h b/extras/Projucer/Source/Project/UI/Sidebar/jucer_ProjectTreeItemBase.h
index 9d8181ce70..6c4711e0ae 100644
--- a/extras/Projucer/Source/Project/UI/Sidebar/jucer_ProjectTreeItemBase.h
+++ b/extras/Projucer/Source/Project/UI/Sidebar/jucer_ProjectTreeItemBase.h
@@ -66,12 +66,6 @@ struct ProjectTreeItemBase  : public JucerTreeViewBase,
            refreshSubItems();
     }
 
-    void valueTreePropertyChanged (ValueTree&, const Identifier&) override {}
-    void valueTreeChildAdded (ValueTree&, ValueTree&) override {}
-    void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override {}
-    void valueTreeChildOrderChanged (ValueTree&, int, int) override {}
-    void valueTreeParentChanged (ValueTree&) override {}
-
     virtual bool isProjectSettings() const          { return false; }
     virtual bool isModulesList() const              { return false; }
 
diff --git a/extras/Projucer/Source/Project/UI/jucer_HeaderComponent.h b/extras/Projucer/Source/Project/UI/jucer_HeaderComponent.h
index 6aa7ee14a8..540b3840ac 100644
--- a/extras/Projucer/Source/Project/UI/jucer_HeaderComponent.h
+++ b/extras/Projucer/Source/Project/UI/jucer_HeaderComponent.h
@@ -70,9 +70,6 @@ private:
     void timerCallback() override;
 
     //==========================================================================
-    void valueTreePropertyChanged (ValueTree&, const Identifier&) override       {}
-    void valueTreeParentChanged (ValueTree&) override                            {}
-
     void valueTreeChildAdded (ValueTree& parentTree, ValueTree&) override        { updateIfNeeded (parentTree); }
     void valueTreeChildRemoved (ValueTree& parentTree, ValueTree&, int) override { updateIfNeeded (parentTree); }
     void valueTreeChildOrderChanged (ValueTree& parentTree, int, int) override   { updateIfNeeded (parentTree); }
diff --git a/extras/Projucer/Source/Project/jucer_Project.cpp b/extras/Projucer/Source/Project/jucer_Project.cpp
index 6404f97188..724d68c364 100644
--- a/extras/Projucer/Source/Project/jucer_Project.cpp
+++ b/extras/Projucer/Source/Project/jucer_Project.cpp
@@ -764,7 +764,6 @@ void Project::valueTreePropertyChanged (ValueTree& tree, const Identifier& prope
 void Project::valueTreeChildAdded (ValueTree&, ValueTree&)          { changed(); }
 void Project::valueTreeChildRemoved (ValueTree&, ValueTree&, int)   { changed(); }
 void Project::valueTreeChildOrderChanged (ValueTree&, int, int)     { changed(); }
-void Project::valueTreeParentChanged (ValueTree&)                   {}
 
 //==============================================================================
 bool Project::hasProjectBeenModified()
diff --git a/extras/Projucer/Source/Project/jucer_Project.h b/extras/Projucer/Source/Project/jucer_Project.h
index 57d0028b43..75124c05f0 100644
--- a/extras/Projucer/Source/Project/jucer_Project.h
+++ b/extras/Projucer/Source/Project/jucer_Project.h
@@ -387,7 +387,6 @@ public:
     void valueTreeChildAdded (ValueTree&, ValueTree&) override;
     void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override;
     void valueTreeChildOrderChanged (ValueTree&, int, int) override;
-    void valueTreeParentChanged (ValueTree&) override;
 
     //==============================================================================
     UndoManager* getUndoManagerFor (const ValueTree&) const             { return nullptr; }
diff --git a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
index 62c0466ad3..92b8335bfa 100644
--- a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
+++ b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.cpp
@@ -411,19 +411,12 @@ void AudioProcessorValueTreeState::valueTreeChildAdded (ValueTree& parent, Value
         setNewState (tree);
 }
 
-void AudioProcessorValueTreeState::valueTreeChildRemoved (ValueTree&, ValueTree&, int)
-{
-}
-
 void AudioProcessorValueTreeState::valueTreeRedirected (ValueTree& v)
 {
     if (v == state)
         updateParameterConnectionsToChildTrees();
 }
 
-void AudioProcessorValueTreeState::valueTreeChildOrderChanged (ValueTree&, int, int) {}
-void AudioProcessorValueTreeState::valueTreeParentChanged (ValueTree&) {}
-
 bool AudioProcessorValueTreeState::flushParameterValuesToValueTree()
 {
     ScopedLock lock (valueTreeChanging);
diff --git a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
index ee137411b8..baba748a0b 100644
--- a/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
+++ b/modules/juce_audio_processors/utilities/juce_AudioProcessorValueTreeState.h
@@ -535,9 +535,6 @@ private:
 
     void valueTreePropertyChanged (ValueTree&, const Identifier&) override;
     void valueTreeChildAdded (ValueTree&, ValueTree&) override;
-    void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override;
-    void valueTreeChildOrderChanged (ValueTree&, int, int) override;
-    void valueTreeParentChanged (ValueTree&) override;
     void valueTreeRedirected (ValueTree&) override;
     void updateParameterConnectionsToChildTrees();
 
diff --git a/modules/juce_data_structures/values/juce_CachedValue.h b/modules/juce_data_structures/values/juce_CachedValue.h
index 3d6a2afae6..6236e50652 100644
--- a/modules/juce_data_structures/values/juce_CachedValue.h
+++ b/modules/juce_data_structures/values/juce_CachedValue.h
@@ -197,10 +197,6 @@ private:
     Type getTypedValue() const;
 
     void valueTreePropertyChanged (ValueTree& changedTree, const Identifier& changedProperty) override;
-    void valueTreeChildAdded (ValueTree&, ValueTree&) override {}
-    void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override {}
-    void valueTreeChildOrderChanged (ValueTree&, int, int) override {}
-    void valueTreeParentChanged (ValueTree&) override {}
 
     //==============================================================================
     JUCE_DECLARE_WEAK_REFERENCEABLE (CachedValue)
diff --git a/modules/juce_data_structures/values/juce_ValueTree.cpp b/modules/juce_data_structures/values/juce_ValueTree.cpp
index 9ba7cf254e..8eaa78d98f 100644
--- a/modules/juce_data_structures/values/juce_ValueTree.cpp
+++ b/modules/juce_data_structures/values/juce_ValueTree.cpp
@@ -1088,12 +1088,12 @@ ValueTree ValueTree::readFromGZIPData (const void* data, size_t numBytes)
     return readFromStream (gzipStream);
 }
 
-void ValueTree::Listener::valueTreePropertyChanged   (ValueTree&, const Identifier&)  {}
-void ValueTree::Listener::valueTreeChildAdded        (ValueTree&, ValueTree&)         {}
-void ValueTree::Listener::valueTreeChildRemoved      (ValueTree&, ValueTree&, int)    {}
-void ValueTree::Listener::valueTreeChildOrderChanged (ValueTree&, int, int)           {}
-void ValueTree::Listener::valueTreeParentChanged     (ValueTree&)                     {}
-void ValueTree::Listener::valueTreeRedirected        (ValueTree&)                     {}
+void ValueTree::Listener::valueTreePropertyChanged   (ValueTree&, const Identifier&) {}
+void ValueTree::Listener::valueTreeChildAdded        (ValueTree&, ValueTree&)        {}
+void ValueTree::Listener::valueTreeChildRemoved      (ValueTree&, ValueTree&, int)   {}
+void ValueTree::Listener::valueTreeChildOrderChanged (ValueTree&, int, int)          {}
+void ValueTree::Listener::valueTreeParentChanged     (ValueTree&)                    {}
+void ValueTree::Listener::valueTreeRedirected        (ValueTree&)                    {}
 
 //==============================================================================
 #if JUCE_UNIT_TESTS
diff --git a/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.cpp b/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.cpp
index 7e49e712fb..68cca2682f 100644
--- a/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.cpp
+++ b/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.cpp
@@ -159,8 +159,6 @@ void ValueTreeSynchroniser::valueTreeChildOrderChanged (ValueTree& parent, int o
     stateChanged (m.getData(), m.getDataSize());
 }
 
-void ValueTreeSynchroniser::valueTreeParentChanged (ValueTree&)  {} // (No action needed here)
-
 bool ValueTreeSynchroniser::applyChange (ValueTree& root, const void* data, size_t dataSize, UndoManager* undoManager)
 {
     MemoryInputStream input (data, dataSize, false);
diff --git a/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.h b/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.h
index 61e73da472..5d5a983503 100644
--- a/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.h
+++ b/modules/juce_data_structures/values/juce_ValueTreeSynchroniser.h
@@ -91,7 +91,6 @@ private:
     void valueTreeChildAdded (ValueTree&, ValueTree&) override;
     void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override;
     void valueTreeChildOrderChanged (ValueTree&, int, int) override;
-    void valueTreeParentChanged (ValueTree&) override;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ValueTreeSynchroniser)
 };