diff --git a/extras/Projucer/Source/Application/jucer_MainWindow.cpp b/extras/Projucer/Source/Application/jucer_MainWindow.cpp
index 337dde39a9..bd59b1c46f 100644
--- a/extras/Projucer/Source/Application/jucer_MainWindow.cpp
+++ b/extras/Projucer/Source/Application/jucer_MainWindow.cpp
@@ -253,11 +253,8 @@ void MainWindow::moveProject (File newProjectFileToOpen, OpenInIDE openInIDE)
     closeCurrentProject (OpenDocumentManager::SaveIfNeeded::no);
     openFile (newProjectFileToOpen);
 
-    if (currentProject != nullptr)
-        ProjucerApplication::getApp().getCommandManager()
-                                     .invokeDirectly (openInIDE == OpenInIDE::yes ? CommandIDs::saveAndOpenInIDE
-                                                                                  : CommandIDs::saveProject,
-                                                      false);
+    if (currentProject != nullptr && openInIDE == OpenInIDE::yes)
+        ProjucerApplication::getApp().getCommandManager().invokeDirectly (CommandIDs::openInIDE, false);
 }
 
 void MainWindow::setProject (std::unique_ptr<Project> newProject)
diff --git a/extras/Projucer/Source/Project/jucer_Project.cpp b/extras/Projucer/Source/Project/jucer_Project.cpp
index 5cc63512b3..1ad0282d6f 100644
--- a/extras/Projucer/Source/Project/jucer_Project.cpp
+++ b/extras/Projucer/Source/Project/jucer_Project.cpp
@@ -970,7 +970,8 @@ void Project::saveAndMoveTemporaryProject (bool openInIDE)
     auto newDirectory = newParentDirectory.getChildFile (tempDirectory.getFileName());
     auto oldJucerFileName = getFile().getFileName();
 
-    writeProjectFile();
+    ProjectSaver saver (*this);
+    saver.save();
 
     tempDirectory.copyDirectoryTo (newDirectory);
     tempDirectory.deleteRecursively();
@@ -1091,20 +1092,6 @@ bool Project::updateCachedFileState()
     return true;
 }
 
-void Project::writeProjectFile()
-{
-    updateCachedFileState();
-
-    auto newSerialisedXml = serialiseProjectXml (getProjectRoot().createXml());
-    jassert (newSerialisedXml.isNotEmpty());
-
-    if (newSerialisedXml != cachedFileState.second)
-    {
-        getFile().replaceWithText (newSerialisedXml);
-        cachedFileState = { getFile().getLastModificationTime(), newSerialisedXml };
-    }
-}
-
 //==============================================================================
 File Project::resolveFilename (String filename) const
 {
diff --git a/extras/Projucer/Source/Project/jucer_Project.h b/extras/Projucer/Source/Project/jucer_Project.h
index 726b272e05..41179b942c 100644
--- a/extras/Projucer/Source/Project/jucer_Project.h
+++ b/extras/Projucer/Source/Project/jucer_Project.h
@@ -475,7 +475,9 @@ public:
 
     //==============================================================================
     bool updateCachedFileState();
-    void writeProjectFile();
+    String getCachedFileStateContent() const noexcept  { return cachedFileState.second; }
+
+    String serialiseProjectXml (std::unique_ptr<XmlElement>) const;
 
     //==============================================================================
     String getUniqueTargetFolderSuffixForExporter (const Identifier& exporterIdentifier, const String& baseTargetFolder);
@@ -566,7 +568,6 @@ private:
     std::pair<Time, String> cachedFileState;
 
     void saveAndMoveTemporaryProject (bool openInIDE);
-    String serialiseProjectXml (std::unique_ptr<XmlElement>) const;
 
     //==============================================================================
     friend class Item;
diff --git a/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.cpp b/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.cpp
index 697f164aa6..8a788d9f9a 100644
--- a/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.cpp
+++ b/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.cpp
@@ -30,6 +30,8 @@
 static constexpr const char* generatedGroupID = "__jucelibfiles";
 static constexpr const char* generatedGroupUID = "__generatedcode__";
 
+constexpr int jucerFormatVersion = 1;
+
 //==============================================================================
 ProjectSaver::ProjectSaver (Project& p)
     : project (p),
@@ -294,7 +296,7 @@ Result ProjectSaver::saveProject (ProjectExporter* specifiedExporterToSave)
         writeProjects (modules, specifiedExporterToSave);
         runPostExportScript();
 
-        project.writeProjectFile();
+        writeProjectFile();
 
         if (generatedCodeFolder.exists())
         {
@@ -332,6 +334,25 @@ void ProjectSaver::writePluginDefines (MemoryOutputStream& out) const
         << pluginDefines << newLine;
 }
 
+void ProjectSaver::writeProjectFile()
+{
+    auto root = project.getProjectRoot();
+
+    root.removeProperty ("jucerVersion", nullptr);
+    root.setProperty (Ids::jucerFormatVersion, jucerFormatVersion, nullptr);
+
+    project.updateCachedFileState();
+
+    auto newSerialisedXml = project.serialiseProjectXml (root.createXml());
+    jassert (newSerialisedXml.isNotEmpty());
+
+    if (newSerialisedXml != project.getCachedFileStateContent())
+    {
+        project.getFile().replaceWithText (newSerialisedXml);
+        project.updateCachedFileState();
+    }
+}
+
 void ProjectSaver::writeAppConfig (MemoryOutputStream& out, const OwnedArray<LibraryModule>& modules, const String& userContent)
 {
     if (! project.shouldUseAppConfig())
diff --git a/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.h b/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.h
index 31500c3bd8..e3d0348cd0 100644
--- a/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.h
+++ b/extras/Projucer/Source/ProjectSaving/jucer_ProjectSaver.h
@@ -95,7 +95,7 @@ private:
     void writePluginDefines();
     void writeAppConfigFile (const OwnedArray<LibraryModule>& modules, const String& userContent);
 
-    void writeMainProjectFile();
+    void writeProjectFile();
     void writeAppConfig (MemoryOutputStream& outStream, const OwnedArray<LibraryModule>& modules, const String& userContent);
     void writeAppHeader (MemoryOutputStream& outStream, const OwnedArray<LibraryModule>& modules);
     void writeAppHeader (const OwnedArray<LibraryModule>& modules);
diff --git a/extras/Projucer/Source/Utility/Helpers/jucer_PresetIDs.h b/extras/Projucer/Source/Utility/Helpers/jucer_PresetIDs.h
index 1cc51a0492..edd3b091fe 100644
--- a/extras/Projucer/Source/Utility/Helpers/jucer_PresetIDs.h
+++ b/extras/Projucer/Source/Utility/Helpers/jucer_PresetIDs.h
@@ -370,6 +370,7 @@ namespace Ids
     DECLARE_ID (postExportShellCommandWin);
     DECLARE_ID (liveBuildEnabled);
     DECLARE_ID (guiEditorEnabled);
+    DECLARE_ID (jucerFormatVersion);
 
     const Identifier ID ("id");
     const Identifier ID_uppercase ("ID");