diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 66fb4c64429..356384fb090 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -3398,6 +3398,7 @@ QPalette QGuiApplicationPrivate::basePalette() const
 
 void QGuiApplicationPrivate::handlePaletteChanged(const char *className)
 {
+#if QT_DEPRECATED_SINCE(6, 0)
     if (!className) {
         Q_ASSERT(app_pal);
 QT_WARNING_PUSH
@@ -3405,6 +3406,9 @@ QT_WARNING_DISABLE_DEPRECATED
         emit qGuiApp->paletteChanged(*QGuiApplicationPrivate::app_pal);
 QT_WARNING_POP
     }
+#else
+    Q_UNUSED(className);
+#endif // QT_DEPRECATED_SINCE(6, 0)
 
     if (is_app_running && !is_app_closing) {
         QEvent event(QEvent::ApplicationPaletteChange);
@@ -3463,10 +3467,14 @@ void QGuiApplication::setFont(const QFont &font)
     if (emitChange && qGuiApp) {
         auto font = *QGuiApplicationPrivate::app_font;
         locker.unlock();
+#if QT_DEPRECATED_SINCE(6, 0)
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_DEPRECATED
         emit qGuiApp->fontChanged(font);
 QT_WARNING_POP
+#else
+        Q_UNUSED(font);
+#endif // QT_DEPRECATED_SINCE(6, 0)
         QEvent event(QEvent::ApplicationFontChange);
         QGuiApplication::sendEvent(qGuiApp, &event);
     }
diff --git a/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp b/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
index 500f13ea388..e8c283252ec 100644
--- a/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
+++ b/tests/auto/gui/kernel/qguiapplication/tst_qguiapplication.cpp
@@ -520,26 +520,35 @@ void tst_QGuiApplication::palette()
     // The default application palette is not resolved
     QVERIFY(!QGuiApplication::palette().resolveMask());
 
+    // TODO: add event processing instead of the signal
+#if QT_DEPRECATED_SINCE(6, 0)
     QSignalSpy signalSpy(&app, SIGNAL(paletteChanged(QPalette)));
+#endif
 
     QPalette oldPalette = QGuiApplication::palette();
     QPalette newPalette = QPalette(Qt::red);
 
     QGuiApplication::setPalette(newPalette);
     QVERIFY(palettesMatch(QGuiApplication::palette(), newPalette));
+#if QT_DEPRECATED_SINCE(6, 0)
     QCOMPARE(signalSpy.count(), 1);
+#endif
     QVERIFY(palettesMatch(signalSpy.at(0).at(0).value<QPalette>(), newPalette));
     QCOMPARE(QGuiApplication::palette(), QPalette());
 
     QGuiApplication::setPalette(oldPalette);
     QVERIFY(palettesMatch(QGuiApplication::palette(), oldPalette));
+#if QT_DEPRECATED_SINCE(6, 0)
     QCOMPARE(signalSpy.count(), 2);
+#endif
     QVERIFY(palettesMatch(signalSpy.at(1).at(0).value<QPalette>(), oldPalette));
     QCOMPARE(QGuiApplication::palette(), QPalette());
 
     QGuiApplication::setPalette(oldPalette);
     QVERIFY(palettesMatch(QGuiApplication::palette(), oldPalette));
+#if QT_DEPRECATED_SINCE(6, 0)
     QCOMPARE(signalSpy.count(), 2);
+#endif
     QCOMPARE(QGuiApplication::palette(), QPalette());
 }
 
diff --git a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
index 59cc7f0884d..3db9953471d 100644
--- a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
+++ b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
@@ -215,10 +215,12 @@ void tst_QApplication::staticSetup()
         EventWatcher()
         {
             qApp->installEventFilter(this);
+#if QT_DEPRECATED_SINCE(6, 0)
 QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
             QObject::connect(qApp, &QApplication::paletteChanged, [&]{ ++palette_changed; });
             QObject::connect(qApp, &QApplication::fontChanged, [&]{ ++font_changed; });
 QT_WARNING_POP
+#endif
         }
 
     protected:
@@ -248,8 +250,13 @@ QT_WARNING_POP
     font.setBold(!font.bold());
     qApp->setFont(font);
     QApplication::processEvents();
+#if QT_DEPRECATED_SINCE(6, 0)
     QCOMPARE(watcher.palette_changed, 2);
     QCOMPARE(watcher.font_changed, 2);
+#else
+    QCOMPARE(watcher.palette_changed, 1);
+    QCOMPARE(watcher.font_changed, 1);
+#endif
 }