diff --git a/autotests/kwindoweffectstest.cpp b/autotests/kwindoweffectstest.cpp
--- a/autotests/kwindoweffectstest.cpp
+++ b/autotests/kwindoweffectstest.cpp
@@ -49,7 +49,9 @@
     void testBlur_data();
     void testBlur();
     void testBlurDisable();
+#if KWINDOWSYSTEM_ENABLE_DEPRECATED_SINCE(5, 67)
     void testMarkAsDashboard();
+#endif
     void testEffectAvailable_data();
     void testEffectAvailable();
 
@@ -362,6 +364,7 @@
     performAtomIsRemoveTest(m_window->winId(), m_blur);
 }
 
+#if KWINDOWSYSTEM_ENABLE_DEPRECATED_SINCE(5, 67)
 void KWindowEffectsTest::testMarkAsDashboard()
 {
     const QByteArray className = QByteArrayLiteral("dashboard");
@@ -390,6 +393,7 @@
     data = data + 10;
     QCOMPARE(QByteArray(data), className);
 }
+#endif
 
 void KWindowEffectsTest::testEffectAvailable_data()
 {
@@ -401,7 +405,9 @@
     QTest::newRow("PresentWindowsGroup") << KWindowEffects::PresentWindowsGroup << QByteArrayLiteral("_KDE_PRESENT_WINDOWS_GROUP");
     QTest::newRow("HighlightWindows") << KWindowEffects::HighlightWindows << QByteArrayLiteral("_KDE_WINDOW_HIGHLIGHT");
     QTest::newRow("BlurBehind") << KWindowEffects::BlurBehind << QByteArrayLiteral("_KDE_NET_WM_BLUR_BEHIND_REGION");
+#if KWINDOWSYSTEM_ENABLE_DEPRECATED_SINCE(5, 67)
     QTest::newRow("Dashboard") << KWindowEffects::Dashboard << QByteArrayLiteral("_WM_EFFECT_KDE_DASHBOARD");
+#endif
     QTest::newRow("BackgroundContrast") << KWindowEffects::BackgroundContrast << QByteArrayLiteral("_KDE_NET_WM_BACKGROUND_CONTRAST_REGION");
 }
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -76,7 +76,7 @@
     GROUP_BASE_NAME KF
     VERSION ${KF5_VERSION}
     DEPRECATED_BASE_VERSION 0
-    DEPRECATION_VERSIONS 5.0 5.18 5.38 5.62
+    DEPRECATION_VERSIONS 5.0 5.18 5.38 5.62 5.67
     EXCLUDE_DEPRECATED_BEFORE_AND_AT ${EXCLUDE_DEPRECATED_BEFORE_AND_AT}
 )
 
diff --git a/src/kwindoweffects.h b/src/kwindoweffects.h
--- a/src/kwindoweffects.h
+++ b/src/kwindoweffects.h
@@ -36,7 +36,9 @@
     PresentWindowsGroup = 4,
     HighlightWindows = 5,
     BlurBehind = 7,
+#if KWINDOWSYSTEM_ENABLE_DEPRECATED_SINCE(5, 67)
     Dashboard = 8,
+#endif
     BackgroundContrast = 9
 };
 
@@ -153,14 +155,18 @@
  */
 KWINDOWSYSTEM_EXPORT void enableBackgroundContrast(WId window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion());
 
+#if KWINDOWSYSTEM_ENABLE_DEPRECATED_SINCE(5, 67)
 /**
  * Instructs the window manager to handle the given window as dashboard window as
  * Dashboard windows should be handled diffrently and may have special effects
  * applied to them.
  *
  * @param window The window for which to enable the blur effect
+ * @deprecated since 5.67, support for dashboard windows was removed
  */
+KWINDOWSYSTEM_DEPRECATED_VERSION(5, 67, "Support for dashboard windows was removed")
 KWINDOWSYSTEM_EXPORT void markAsDashboard(WId window);
+#endif
 }
 
 #endif
diff --git a/src/kwindoweffects.cpp b/src/kwindoweffects.cpp
--- a/src/kwindoweffects.cpp
+++ b/src/kwindoweffects.cpp
@@ -55,10 +55,12 @@
     KWindowSystemPluginWrapper::self().effects()->highlightWindows(controller, ids);
 }
 
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
 void markAsDashboard(WId window)
 {
     KWindowSystemPluginWrapper::self().effects()->markAsDashboard(window);
 }
+#endif
 
 void presentWindows(WId controller, const QList< WId > &ids)
 {
diff --git a/src/kwindoweffects_dummy.cpp b/src/kwindoweffects_dummy.cpp
--- a/src/kwindoweffects_dummy.cpp
+++ b/src/kwindoweffects_dummy.cpp
@@ -84,7 +84,9 @@
     Q_UNUSED(region)
 }
 
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
 void KWindowEffectsPrivateDummy::markAsDashboard(WId window)
 {
     Q_UNUSED(window)
 }
+#endif
diff --git a/src/kwindoweffects_dummy_p.h b/src/kwindoweffects_dummy_p.h
--- a/src/kwindoweffects_dummy_p.h
+++ b/src/kwindoweffects_dummy_p.h
@@ -34,7 +34,9 @@
     void highlightWindows(WId controller, const QList<WId> &ids) override;
     void enableBlurBehind(WId window, bool enable = true, const QRegion& region = QRegion()) override;
     void enableBackgroundContrast(WId window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion()) override;
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
     void markAsDashboard(WId window) override;
+#endif
 };
 
 #endif
diff --git a/src/kwindoweffects_p.h b/src/kwindoweffects_p.h
--- a/src/kwindoweffects_p.h
+++ b/src/kwindoweffects_p.h
@@ -33,7 +33,9 @@
     virtual void highlightWindows(WId controller, const QList<WId> &ids) = 0;
     virtual void enableBlurBehind(WId window, bool enable = true, const QRegion &region = QRegion()) = 0;
     virtual void enableBackgroundContrast(WId window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion()) = 0;
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
     virtual void markAsDashboard(WId window) = 0;
+#endif
 protected:
     KWindowEffectsPrivate();
 };
diff --git a/src/platforms/xcb/kwindoweffects.cpp b/src/platforms/xcb/kwindoweffects.cpp
--- a/src/platforms/xcb/kwindoweffects.cpp
+++ b/src/platforms/xcb/kwindoweffects.cpp
@@ -28,7 +28,6 @@
 #include <QX11Info>
 #include <QMatrix4x4>
 
-static const char DASHBOARD_WIN_CLASS[] = "dashboard\0dashboard";
 using namespace KWindowEffects;
 
 KWindowEffectsPrivateX11::KWindowEffectsPrivateX11()
@@ -62,10 +61,12 @@
     case BlurBehind:
         effectName = QByteArrayLiteral("_KDE_NET_WM_BLUR_BEHIND_REGION");
         break;
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
     case Dashboard:
         // TODO: Better namespacing for atoms
         effectName = QByteArrayLiteral("_WM_EFFECT_KDE_DASHBOARD");
         break;
+#endif
     case BackgroundContrast:
         effectName = QByteArrayLiteral("_KDE_NET_WM_BACKGROUND_CONTRAST_REGION");
         break;
@@ -331,13 +332,15 @@
     }
 }
 
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
 void KWindowEffectsPrivateX11::markAsDashboard(WId window)
 {
+    static const char DASHBOARD_WIN_CLASS[] = "dashboard\0dashboard";
     xcb_connection_t *c = QX11Info::connection();
     if (!c) {
         return;
     }
     xcb_change_property(c, XCB_PROP_MODE_REPLACE, window, XCB_ATOM_WM_CLASS,
                         XCB_ATOM_STRING, 8, 19, DASHBOARD_WIN_CLASS);
 }
-
+#endif
diff --git a/src/platforms/xcb/kwindoweffects_x11.h b/src/platforms/xcb/kwindoweffects_x11.h
--- a/src/platforms/xcb/kwindoweffects_x11.h
+++ b/src/platforms/xcb/kwindoweffects_x11.h
@@ -34,7 +34,9 @@
     void highlightWindows(WId controller, const QList<WId> &ids) override;
     void enableBlurBehind(WId window, bool enable = true, const QRegion& region = QRegion()) override;
     void enableBackgroundContrast(WId window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion()) override;
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
     void markAsDashboard(WId window) override;
+#endif
 };
 
 #endif