diff --git a/NEWS.md b/NEWS.md
index f9f5774a..e92ed694 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,9 +1,11 @@
+Version 0.7.0
+ - fix: Backspace still works in readonly mode
+
 Version 0.6.8
  - enhancement: add link to cppreference in the help menu
  - fix: add mutex lock to prevent editor crash in rare conditions
  - fix: In the create project dialog, the browser button doesn't work
  - enhancement: use QStyle to implement the dark style, and better control of the style's look and feel 
- - enhancement: add link to C/C++ reference website in the help menu
  - enhancement: add link to EGE website, if locale is zh_CN
 
 Version 0.6.7
diff --git a/RedPandaIDE/qsynedit/SynEdit.cpp b/RedPandaIDE/qsynedit/SynEdit.cpp
index 51e19c3a..3deeb68e 100644
--- a/RedPandaIDE/qsynedit/SynEdit.cpp
+++ b/RedPandaIDE/qsynedit/SynEdit.cpp
@@ -1522,22 +1522,21 @@ void SynEdit::doToggleComment()
 
 void SynEdit::doDeleteLastChar()
 {
-    //  if not ReadOnly then begin
+    if (mReadOnly)
+        return ;
     doOnPaintTransientEx(SynTransientType::ttBefore, true);
     auto action = finally([this]{
         ensureCursorPosVisible();
         doOnPaintTransientEx(SynTransientType::ttAfter, true);
     });
-    //            try
+
     if (selAvail()) {
         setSelectedTextEmpty();
         return;
     }
     QString Temp = lineText();
-    //TabBuffer := Lines.ExpandedStrings[CaretY - 1];
     int Len = Temp.length();
     BufferCoord Caret = caretXY();
-//    int vTabTrim = 0;
     QString helper = "";
     if (mCaretX > Len + 1) {
 //        if (mOptions.setFlag(eoSmartTabDelete)) {
diff --git a/RedPandaIDE/systemconsts.h b/RedPandaIDE/systemconsts.h
index 8af44fda..b9ffa4bd 100644
--- a/RedPandaIDE/systemconsts.h
+++ b/RedPandaIDE/systemconsts.h
@@ -3,7 +3,7 @@
 
 #include <QStringList>
 
-#define DEVCPP_VERSION "0.6.8"
+#define DEVCPP_VERSION "0.6.9"
 
 #ifdef Q_OS_WIN
 #define APP_SETTSINGS_FILENAME "redpandacpp.ini"