diff --git a/Libs/Core/ctkFileLogger.cpp b/Libs/Core/ctkFileLogger.cpp
index ad0cdbf51f..d46c7c2fc0 100644
--- a/Libs/Core/ctkFileLogger.cpp
+++ b/Libs/Core/ctkFileLogger.cpp
@@ -136,7 +136,11 @@ void ctkFileLogger::logMessage(const QString& msg)
     return;
     }
   QTextStream s(&f);
+  #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+  s << msg << Qt::endl;
+  #else
   s << msg << endl;
+  #endif
   f.close();
 }
 
diff --git a/Libs/QtTesting/ctkEventTranslatorPlayerWidget.cpp b/Libs/QtTesting/ctkEventTranslatorPlayerWidget.cpp
index 541641a8c2..92ae2a86c2 100644
--- a/Libs/QtTesting/ctkEventTranslatorPlayerWidget.cpp
+++ b/Libs/QtTesting/ctkEventTranslatorPlayerWidget.cpp
@@ -279,10 +279,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const double &actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = " << actual << " \n"
+        << "\tExpected value : '" << expectedName << "' = " << expected << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = " << actual << " \n"
         << "\tExpected value : '" << expectedName << "' = " << expected << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -298,10 +305,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const int &actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = " << actual << " \n"
+        << "\tExpected value : '" << expectedName << "' = " << expected << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = " << actual << " \n"
         << "\tExpected value : '" << expectedName << "' = " << expected << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -318,10 +332,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const QString& actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = " << actual << " \n"
+        << "\tExpected value : '" << expectedName << "' = " << expected << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = " << actual << " \n"
         << "\tExpected value : '" << expectedName << "' = " << expected << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -338,10 +359,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const QStringList& actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = " << actual.join(" ") << " \n"
+        << "\tExpected value : '" << expectedName << "' = " << expected.join(" ") << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = " << actual.join(" ") << " \n"
         << "\tExpected value : '" << expectedName << "' = " << expected.join(" ") << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -358,10 +386,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const QDateTime& actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = " << actual.date().toString() << " \n"
+        << "\tExpected value : '" << expectedName << "' = " << expected.date().toString() << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = " << actual.date().toString() << " \n"
         << "\tExpected value : '" << expectedName << "' = " << expected.date().toString() << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -378,10 +413,17 @@ bool ctkEventTranslatorPlayerWidget::compare(const QColor& actual,
 {
   if (actual != expected)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - Problem with function " << function << "\n"
+        << "\tActual value : '" << actualName << "' = R:" << actual.red() << " G:"<< actual.green() << " B:" << actual.blue() << "\n"
+        << "\tExpected value : '" << expectedName << "' = R:" << expected.red() << " G:"<< expected.green() << " B:" << expected.blue()<< Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - Problem with function " << function << "\n"
         << "\tActual value : '" << actualName << "' = R:" << actual.red() << " G:"<< actual.green() << " B:" << actual.blue() << "\n"
         << "\tExpected value : '" << expectedName << "' = R:" << expected.red() << " G:"<< expected.green() << " B:" << expected.blue()<< endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -406,18 +448,30 @@ bool ctkEventTranslatorPlayerWidget::compare(const QImage& actual,
   // images are not the same if one images contains a null image
   if (actual.isNull() || expected.isNull())
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - 1 image is Null " << function << "\n" << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - 1 image is Null " << function << "\n" << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
   // images do not have the same size
   if (actual.size() != expected.size())
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - The 2 Images don't have the same size " << function << "\n"
+        << "\tActual value : '" << actualName << "' = W:" << actual.width() << " H:"<< actual.height() << "\n"
+        << "\tExpected value : '" << expectedName << "' = W:" << expected.width() << " H:"<< expected.height() << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - The 2 Images don't have the same size " << function << "\n"
         << "\tActual value : '" << actualName << "' = W:" << actual.width() << " H:"<< actual.height() << "\n"
         << "\tExpected value : '" << expectedName << "' = W:" << expected.width() << " H:"<< expected.height() << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
@@ -444,9 +498,15 @@ bool ctkEventTranslatorPlayerWidget::compare(const QImage& actual,
   totaldiff = (totaldiff * 100)  / (a.width() * a.height());
   if (totaldiff >= 0.01)
     {
+    #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    QTextStream(stderr, QIODevice::WriteOnly)
+        << "Line " << line << " - The 2 Images have "
+        << totaldiff << "% differencies \n" << Qt::endl;
+    #else
     QTextStream(stderr, QIODevice::WriteOnly)
         << "Line " << line << " - The 2 Images have "
         << totaldiff << "% differencies \n" << endl;
+    #endif
     QApplication::exit(EXIT_FAILURE);
     return false;
     }
diff --git a/Libs/Visualization/VTK/Core/ctkVTKConnection.cpp b/Libs/Visualization/VTK/Core/ctkVTKConnection.cpp
index 5130bce945..935d74142d 100644
--- a/Libs/Visualization/VTK/Core/ctkVTKConnection.cpp
+++ b/Libs/Visualization/VTK/Core/ctkVTKConnection.cpp
@@ -249,6 +249,19 @@ vtkObject* ctkVTKConnection::vtkobject() const
 QDebug operator<<(QDebug dbg, const ctkVTKConnection& connection)
 {
   const ctkVTKConnectionPrivate* d = connection.d_func();
+  #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+  dbg.nospace() << "ctkVTKConnection:" << &connection << Qt::endl
+                << "Id:" << d->Id << Qt::endl
+                << " VTKObject:" << (d->VTKObject ? d->VTKObject->GetClassName() : "<null>")
+                << "(" << d->VTKObject << ")" << Qt::endl
+                << " QtObject:" << d->QtObject << Qt::endl
+                << " VTKEvent:" << d->VTKEvent << Qt::endl
+                << " QtSlot:" << d->QtSlot << Qt::endl
+                << " SlotType:" << d->SlotType << Qt::endl
+                << " Priority:" << d->Priority << Qt::endl
+                << " Connected:" << d->Connected << Qt::endl
+                << " Blocked:" << d->Blocked;
+  #else
   dbg.nospace() << "ctkVTKConnection:" << &connection << endl
                 << "Id:" << d->Id << endl
                 << " VTKObject:" << (d->VTKObject ? d->VTKObject->GetClassName() : "<null>")
@@ -260,6 +273,7 @@ QDebug operator<<(QDebug dbg, const ctkVTKConnection& connection)
                 << " Priority:" << d->Priority << endl
                 << " Connected:" << d->Connected << endl
                 << " Blocked:" << d->Blocked;
+  #endif
   return dbg.space();
 }
 
diff --git a/Libs/Visualization/VTK/Core/ctkVTKObjectEventsObserver.cpp b/Libs/Visualization/VTK/Core/ctkVTKObjectEventsObserver.cpp
index c0c9f3c75e..3862552446 100644
--- a/Libs/Visualization/VTK/Core/ctkVTKObjectEventsObserver.cpp
+++ b/Libs/Visualization/VTK/Core/ctkVTKObjectEventsObserver.cpp
@@ -253,10 +253,17 @@ void ctkVTKObjectEventsObserver::printAdditionalInfo()
 {
   this->Superclass::dumpObjectInfo();
   Q_D(ctkVTKObjectEventsObserver);
+  #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+  qDebug() << "ctkVTKObjectEventsObserver:" << this << Qt::endl
+           << " AllBlocked:" << d->AllBlocked << Qt::endl
+           << " Parent:" << (this->parent()?this->parent()->objectName():"NULL") << Qt::endl
+           << " Connection count:" << d->connections().count();
+  #else
   qDebug() << "ctkVTKObjectEventsObserver:" << this << endl
            << " AllBlocked:" << d->AllBlocked << endl
            << " Parent:" << (this->parent()?this->parent()->objectName():"NULL") << endl
            << " Connection count:" << d->connections().count();
+  #endif
 
   // Loop through all connection
   foreach (const ctkVTKConnection* connection, d->connections())
diff --git a/Libs/Widgets/ctkAddRemoveComboBox.cpp b/Libs/Widgets/ctkAddRemoveComboBox.cpp
index 35c788fe55..d65fb61bdf 100644
--- a/Libs/Widgets/ctkAddRemoveComboBox.cpp
+++ b/Libs/Widgets/ctkAddRemoveComboBox.cpp
@@ -150,6 +150,16 @@ ctkAddRemoveComboBox::~ctkAddRemoveComboBox()
 void ctkAddRemoveComboBox::printAdditionalInfo()
 {
   Q_D(ctkAddRemoveComboBox);
+  #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0))
+    qDebug() << "ctkAddRemoveComboBox:" << this << Qt::endl
+           << " EmptyText:" << d->EmptyText << Qt::endl
+           << " AddingEmptyItem:" << d->AddingEmptyItem << Qt::endl
+           << " RemovingEmptyItem:" << d->RemovingEmptyItem << Qt::endl
+           << " AddEnabled:" << d->AddEnabled << Qt::endl
+           << " RemoveEnabled:" << d->RemoveEnabled << Qt::endl
+           << " EditEnabled:" << d->EditEnabled << Qt::endl
+           << " HasEmptyItem:" << d->HasEmptyItem;
+  #else
   qDebug() << "ctkAddRemoveComboBox:" << this << endl
            << " EmptyText:" << d->EmptyText << endl
            << " AddingEmptyItem:" << d->AddingEmptyItem << endl
@@ -158,6 +168,7 @@ void ctkAddRemoveComboBox::printAdditionalInfo()
            << " RemoveEnabled:" << d->RemoveEnabled << endl
            << " EditEnabled:" << d->EditEnabled << endl
            << " HasEmptyItem:" << d->HasEmptyItem;
+  #endif
 }
 
 // --------------------------------------------------------------------------