diff --git a/NEWS.md b/NEWS.md
index 05615432..357f7de4 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -10,6 +10,10 @@ Red Panda C++ Version 2.17
   - fix: After project's default encoding is changed in the project options dialog, all project files' encoding are wrongly setted to the new encoding.(They should be "Project default")
   - enhancement: Make project's default encoding setting in the project options dialog more user friendly.
   - fix: In project options dialog's file page, Project's default encoding name is not updated when it's changed.
+  - enhancement: Improve the compatibility with Dev-C++ for project configuations saved by Redpanda-C++.
+  - enhancement: Syntax color support for binaray integer literals.
+  - enhancement: Syntax color support for suffix in integer/float literals.
+
 
 Red Panda C++ Version 2.16
 
diff --git a/RedPandaIDE/project.cpp b/RedPandaIDE/project.cpp
index ea779e2e..41cdce6d 100644
--- a/RedPandaIDE/project.cpp
+++ b/RedPandaIDE/project.cpp
@@ -1048,13 +1048,13 @@ bool Project::saveAsTemplate(const QString &templateFolder,
     if (!mOptions.libDirs.isEmpty())
         ini->SetValue("Project", "Libs", relativePaths(mOptions.libDirs).join(";").toUtf8());
     if (!mOptions.compilerCmd.isEmpty())
-        ini->SetValue("Project", "Compiler", textToLines(mOptions.compilerCmd).join(";CONFIG_LINE;").toUtf8());
+        ini->SetValue("Project", "Compiler", textToLines(mOptions.compilerCmd).join(" ").toUtf8());
     if (!mOptions.cppCompilerCmd.isEmpty())
-        ini->SetValue("Project", "CppCompiler", textToLines(mOptions.cppCompilerCmd).join(";CONFIG_LINE;").toUtf8());
+        ini->SetValue("Project", "CppCompiler", textToLines(mOptions.cppCompilerCmd).join(" ").toUtf8());
     if (!mOptions.linkerCmd.isEmpty())
-        ini->SetValue("Project", "Linker",textToLines(mOptions.linkerCmd).join(";CONFIG_LINE;").toUtf8());
+        ini->SetValue("Project", "Linker",textToLines(mOptions.linkerCmd).join(" ").toUtf8());
     if (!mOptions.resourceCmd.isEmpty())
-        ini->SetValue("Project", "ResourceCommand",textToLines(mOptions.resourceCmd).join(";CONFIG_LINE;").toUtf8());
+        ini->SetValue("Project", "ResourceCommand",textToLines(mOptions.resourceCmd).join(" ").toUtf8());
     ini->SetBoolValue("Project", "IsCpp", mOptions.isCpp);
     if (mOptions.includeVersionInfo)
         ini->SetBoolValue("Project", "IncludeVersionInfo", true);
@@ -1152,10 +1152,10 @@ void Project::saveOptions()
     ini.SetValue("Project","ResourceIncludes", toByteArray(relativePaths(mOptions.resourceIncludes).join(";")));
     ini.SetValue("Project","MakeIncludes", toByteArray(relativePaths(mOptions.makeIncludes).join(";")));
     ini.SetValue("Project","PrivateResource", toByteArray(mOptions.privateResource));
-    ini.SetValue("Project","Compiler", toByteArray(textToLines(mOptions.compilerCmd).join(";CONFIG_LINE;")));
-    ini.SetValue("Project","CppCompiler", toByteArray(textToLines(mOptions.cppCompilerCmd).join(";CONFIG_LINE;")));
-    ini.SetValue("Project","Linker", toByteArray(textToLines(mOptions.linkerCmd).join(";CONFIG_LINE;")));
-    ini.SetValue("Project", "ResourceCommand", toByteArray(textToLines(mOptions.resourceCmd).join(";CONFIG_LINE;")));
+    ini.SetValue("Project","Compiler", toByteArray(textToLines(mOptions.compilerCmd).join(" ")));
+    ini.SetValue("Project","CppCompiler", toByteArray(textToLines(mOptions.cppCompilerCmd).join(" ")));
+    ini.SetValue("Project","Linker", toByteArray(textToLines(mOptions.linkerCmd).join(" ")));
+    ini.SetValue("Project", "ResourceCommand", toByteArray(textToLines(mOptions.resourceCmd).join(" ")));
     ini.SetLongValue("Project","IsCpp", mOptions.isCpp);
     ini.SetValue("Project","Icon", toByteArray(extractRelativePath(directory(), mOptions.icon)));
     ini.SetValue("Project","ExeOutput", toByteArray(extractRelativePath(directory(),mOptions.exeOutput)));
@@ -1956,6 +1956,8 @@ void Project::loadOptions(SimpleIni& ini)
         }
 
         mOptions.type = static_cast<ProjectType>(ini.GetLongValue("Project", "type", 0));
+        // ;CONFIG_LINE; is used in olded version config files (<2.17)
+        // keep it for compatibility
         mOptions.compilerCmd = fromByteArray(ini.GetValue("Project", "Compiler", "")).replace(";CONFIG_LINE;","\n");
         mOptions.cppCompilerCmd = fromByteArray(ini.GetValue("Project", "CppCompiler", "")).replace(";CONFIG_LINE;","\n");
         mOptions.linkerCmd = fromByteArray(ini.GetValue("Project", "Linker", "")).replace(";CONFIG_LINE;","\n");
diff --git a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.cpp b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.cpp
index 61a406b8..1c5cc41e 100644
--- a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.cpp
+++ b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.cpp
@@ -93,3 +93,4 @@ void ProjectCompileParamatersWidget::updateIcons(const QSize &/*size*/)
     pIconsManager->setIcon(ui->btnChooseLib, IconsManager::ACTION_MISC_FOLDER);
 }
 
+
diff --git a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.h b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.h
index c60a950e..82005cc8 100644
--- a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.h
+++ b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.h
@@ -41,7 +41,6 @@ protected:
 private slots:
     void on_btnChooseLib_clicked();
 
-    // SettingsWidget interface
 protected:
     void updateIcons(const QSize &size) override;
 };
diff --git a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.ui b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.ui
index ef15b4b4..5cecd205 100644
--- a/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.ui
+++ b/RedPandaIDE/settingsdialog/projectcompileparamaterswidget.ui
@@ -52,7 +52,7 @@
    <item>
     <widget class="QTabWidget" name="tabCommands">
      <property name="currentIndex">
-      <number>3</number>
+      <number>2</number>
      </property>
      <widget class="QWidget" name="tabCCompiler">
       <attribute name="title">
diff --git a/libs/qsynedit/qsynedit/syntaxer/cpp.cpp b/libs/qsynedit/qsynedit/syntaxer/cpp.cpp
index 619a8a04..41882f79 100644
--- a/libs/qsynedit/qsynedit/syntaxer/cpp.cpp
+++ b/libs/qsynedit/qsynedit/syntaxer/cpp.cpp
@@ -31,7 +31,18 @@ static const QSet<QString> CppStatementKeyWords {
     "while",
     "do"
 };
-
+const QSet<QString> CppSyntaxer::ValidIntegerSuffixes {
+    "u",
+    "ll",
+    "z",
+    "l",
+    "uz",
+    "zu",
+    "ull",
+    "llu",
+    "lu",
+    "ul"
+};
 
 
 const QSet<QString> CppSyntaxer::Keywords {
@@ -676,6 +687,9 @@ void CppSyntaxer::procNumber(bool isFloat)
             if (mLine[mRun+1]=='x' || mLine[mRun+1]=='X') {
                 mTokenId=TokenId::Hex;
                 mRun+=2;
+            } else if (mLine[mRun+1]=='b' || mLine[mRun+1]=='B') {
+                    mTokenId=TokenId::Binary;
+                    mRun+=2;
             } else if (mLine[mRun+1]>='0' && mLine[mRun+1]<='7') {
                 mTokenId=TokenId::Octal;
                 mRun+=2;
@@ -690,6 +704,9 @@ void CppSyntaxer::procNumber(bool isFloat)
     case TokenId::Octal:
         procOctNumber();
         break;
+    case TokenId::Binary:
+        procBinNumber();
+        break;
     default:
         procDecNumber();
     }
@@ -700,12 +717,6 @@ void CppSyntaxer::procDecNumber()
 
     while (mRun<mLineSize) {
         switch(mLine[mRun].unicode()) {
-        case '\'':
-            if (mTokenId != TokenId::Number) {
-                return;
-            }
-            mRun++;
-            break;
         case '.':
             if (mTokenId != TokenId::Number) {
                 mTokenId = TokenId::Unknown;
@@ -724,6 +735,7 @@ void CppSyntaxer::procDecNumber()
         case '7':
         case '8':
         case '9':
+        case '\'':
             mRun++;
             break;
         case 'e':
@@ -734,6 +746,7 @@ void CppSyntaxer::procDecNumber()
                 mRun++;
             break;
         default:
+            procNumberSuffix();
             return;
         }
     }
@@ -774,6 +787,7 @@ void CppSyntaxer::procHexNumber()
         case 'D':
         case 'E':
         case 'F':
+        case '\'':
             mRun++;
             break;
         case 'p':
@@ -784,6 +798,7 @@ void CppSyntaxer::procHexNumber()
                 mRun++;
             break;
         default:
+            procNumberSuffix();
             return;
         }
     }
@@ -802,14 +817,85 @@ void CppSyntaxer::procOctNumber()
         case '5':
         case '6':
         case '7':
+        case '\'':
             mRun++;
             break;
         default:
+            procIntegerSuffix();
             return;
         }
     }
 }
 
+void CppSyntaxer::procBinNumber()
+{
+    while (mRun<mLineSize) {
+        switch(mLine[mRun].unicode()) {
+        case '0':
+        case '1':
+        case '\'':
+            mRun++;
+            break;
+        default:
+            procIntegerSuffix();
+            return;
+        }
+    }
+}
+
+void CppSyntaxer::procNumberSuffix()
+{
+    if (mTokenId==TokenId::HexFloat
+            || mTokenId==TokenId::Float )
+        procFloatSuffix();
+    else
+        procIntegerSuffix();
+}
+
+void CppSyntaxer::procIntegerSuffix()
+{
+    if (mRun>=mLineSize)
+        return;
+    int i=mRun;
+    bool shouldExit = false;
+    while (i<mLineSize && !shouldExit) {
+        switch (mLine[i].unicode()) {
+        case 'u':
+        case 'U':
+        case 'l':
+        case 'L':
+        case 'z':
+        case 'Z':
+            i++;
+            break;
+        default:
+            shouldExit=true;
+        }
+    }
+    if (i>mRun) {
+        QString s=mLine.mid(mRun,i-mRun).toLower();
+        if (ValidIntegerSuffixes.contains(s)) {
+            mRun=i;
+        }
+    }
+    return ;
+}
+
+void CppSyntaxer::procFloatSuffix()
+{
+    if (mRun>=mLineSize)
+        return;
+    switch (mLine[mRun].unicode()) {
+    case 'f':
+    case 'F':
+    case 'l':
+    case 'L':
+        mRun++;
+        break;
+    }
+    return ;
+}
+
 void CppSyntaxer::procOr()
 {
     mTokenId = TokenId::Symbol;
@@ -1427,6 +1513,8 @@ const PTokenAttribute &CppSyntaxer::getTokenAttribute() const
         return mHexAttribute;
     case TokenId::Octal:
         return mOctAttribute;
+    case TokenId::Binary:
+        return mOctAttribute;
     case TokenId::Space:
         return mWhitespaceAttribute;
     case TokenId::String:
diff --git a/libs/qsynedit/qsynedit/syntaxer/cpp.h b/libs/qsynedit/qsynedit/syntaxer/cpp.h
index 95971810..da1ff4e0 100644
--- a/libs/qsynedit/qsynedit/syntaxer/cpp.h
+++ b/libs/qsynedit/qsynedit/syntaxer/cpp.h
@@ -41,6 +41,7 @@ class CppSyntaxer: public Syntaxer
         Hex,
         HexFloat,
         Octal,
+        Binary,
         RawString
     };
 
@@ -88,6 +89,8 @@ public:
 
     static const QSet<QString> Keywords;
 
+    static const QSet<QString> ValidIntegerSuffixes;
+
     TokenId getTokenId();
 private:
     void procAndSymbol();
@@ -114,6 +117,11 @@ private:
     void procDecNumber();
     void procHexNumber();
     void procOctNumber();
+    void procBinNumber();
+    void procNumberSuffix();
+    void procIntegerSuffix();
+    void procFloatSuffix();
+
     void procOr();
     void procPlus();
     void procPoint();