diff --git a/NEWS.md b/NEWS.md
index 35638d98..f31f5722 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -6,6 +6,7 @@ Version 0.7.3
  - enhancement: open project file by drag it to the editor area
  - fix: the "add bookmark" menu item is not correctly disabled on a bookmarked line
  - enhancement: "use utf8 by default" in editor's misc setting
+ - fix: syntax issues not correctly cleared when the file was saved as another name.
 
 Version 0.7.2
  - fix: rainbow parenthesis stop functioning when change editor's general options
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index 9e8b9d7d..dcc0cc35 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -305,6 +305,7 @@ bool Editor::saveAs(const QString &name, bool fromProject){
         }
     }
 
+    clearSyntaxIssues();
     pMainWindow->fileSystemWatcher()->removePath(mFilename);
     if (pSettings->codeCompletion().enabled() && mParser)
         mParser->invalidateFile(mFilename);
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 50292e62..c67f5cd0 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -1679,7 +1679,9 @@ void MainWindow::updateTools()
 void MainWindow::newEditor()
 {
     try {
-        Editor * editor=mEditorList->newEditor("",ENCODING_AUTO_DETECT,false,true);
+        Editor * editor=mEditorList->newEditor("",
+                                               pSettings->editor().useUTF8ByDefault()?ENCODING_UTF8:ENCODING_AUTO_DETECT,
+                                               false,true);
         editor->activate();
         updateForEncodingInfo();
     }  catch (FileError e) {
diff --git a/RedPandaIDE/qsynedit/TextBuffer.h b/RedPandaIDE/qsynedit/TextBuffer.h
index de23f9b0..626fa3c9 100644
--- a/RedPandaIDE/qsynedit/TextBuffer.h
+++ b/RedPandaIDE/qsynedit/TextBuffer.h
@@ -59,7 +59,7 @@ public:
     int rightBraces(int Index);
     int lengthOfLongestLine();
     QString lineBreak() const;
-    const SynRangeState& ranges(int Index);
+    SynRangeState ranges(int Index);
     void setRange(int Index, const SynRangeState& ARange, int leftBraces, int rightBraces);
     QString getString(int Index);
     int count();
diff --git a/RedPandaIDE/qsynedit/TextPainter.cpp b/RedPandaIDE/qsynedit/TextPainter.cpp
index 36d903e8..0bdd268a 100644
--- a/RedPandaIDE/qsynedit/TextPainter.cpp
+++ b/RedPandaIDE/qsynedit/TextPainter.cpp
@@ -479,8 +479,8 @@ void SynEditTextPainter::PaintHighlightToken(bool bFillToEOL)
     } else {
       bSel = bLineSelected;
       bComplexToken = false;
-//      bU1 = false; // to shut up compiler warning.
-//      bU2 = false; // to shut up compiler warning.
+      bU1 = false; // to shut up compiler warning.
+      bU2 = false; // to shut up compiler warning.
     }
     // Any token chars accumulated?
     if (TokenAccu.Columns > 0) {
diff --git a/RedPandaIDE/systemconsts.h b/RedPandaIDE/systemconsts.h
index d2bd5ff8..8a2b1816 100644
--- a/RedPandaIDE/systemconsts.h
+++ b/RedPandaIDE/systemconsts.h
@@ -3,7 +3,7 @@
 
 #include <QStringList>
 
-#define DEVCPP_VERSION "0.7.2"
+#define DEVCPP_VERSION "0.7.3"
 
 #define APP_SETTSINGS_FILENAME "redpandacpp.ini"
 #ifdef Q_OS_WIN