diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,6 +70,7 @@
 add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x053f00)
 # Subdirectories
 add_definitions(-DTRANSLATION_DOMAIN=\"kxmlgui5\")
+add_definitions(-DQT_NO_FOREACH)
 if (IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/po")
     ki18n_install(po)
 endif()
diff --git a/src/kaboutapplicationpersonlistdelegate_p.cpp b/src/kaboutapplicationpersonlistdelegate_p.cpp
--- a/src/kaboutapplicationpersonlistdelegate_p.cpp
+++ b/src/kaboutapplicationpersonlistdelegate_p.cpp
@@ -154,7 +154,8 @@
     socialLinks->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 
     int currentSocialLinkAction = 0;
-    Q_FOREACH (KAboutApplicationPersonProfileOcsLink link, profile.ocsLinks()) {
+    const auto links = profile.ocsLinks();
+    for (const KAboutApplicationPersonProfileOcsLink &link : links) {
         if (!profile.homepage().isEmpty() && profile.homepage() == link.url()) {
             continue;    //We skip it if it's the same as the homepage from KAboutData
         }
diff --git a/src/kkeysequencewidget.cpp b/src/kkeysequencewidget.cpp
--- a/src/kkeysequencewidget.cpp
+++ b/src/kkeysequencewidget.cpp
@@ -591,7 +591,7 @@
         stealActions = conflictingActions;
         // Announce that the user
         // agreed
-        Q_FOREACH (QAction *stealAction, stealActions) {
+        for (QAction *stealAction : qAsConst(stealActions)) {
             emit q->stealShortcut(
                 keySequence,
                 stealAction);
diff --git a/src/kmainwindow.cpp b/src/kmainwindow.cpp
--- a/src/kmainwindow.cpp
+++ b/src/kmainwindow.cpp
@@ -913,7 +913,8 @@
 {
     QList<KToolBar *> ret;
 
-    foreach (QObject *child, children())
+    const auto theChildren = children();
+    for (QObject *child : theChildren)
         if (KToolBar *toolBar = qobject_cast<KToolBar *>(child)) {
             ret.append(toolBar);
         }
diff --git a/src/ktoolbar.cpp b/src/ktoolbar.cpp
--- a/src/ktoolbar.cpp
+++ b/src/ktoolbar.cpp
@@ -1188,7 +1188,7 @@
 void KToolBar::dropEvent(QDropEvent *event)
 {
     if (toolBarsEditable()) {
-        Q_FOREACH (QAction *action, d->actionsBeingDragged) {
+        for (QAction *action : qAsConst(d->actionsBeingDragged)) {
             if (actions().contains(action)) {
                 removeAction(action);
             }
diff --git a/src/ktoolbarhandler.cpp b/src/ktoolbarhandler.cpp
--- a/src/ktoolbarhandler.cpp
+++ b/src/ktoolbarhandler.cpp
@@ -86,7 +86,7 @@
             return actions;
         }
 
-        Q_FOREACH (KToolBar *bar, m_toolBars) {
+        for (KToolBar *bar : qAsConst(m_toolBars)) {
             handleToolBar(bar);
         }
 
diff --git a/src/kxmlguifactory.cpp b/src/kxmlguifactory.cpp
--- a/src/kxmlguifactory.cpp
+++ b/src/kxmlguifactory.cpp
@@ -307,7 +307,7 @@
 
 void KXMLGUIFactory::refreshActionProperties()
 {
-    Q_FOREACH (KXMLGUIClient *client, d->m_clients) {
+    for (KXMLGUIClient *client : qAsConst(d->m_clients)) {
         d->guiClient = client;
         QDomDocument doc = client->xmlguiBuildDocument();
         if (doc.documentElement().isNull()) {
diff --git a/src/kxmlguifactory_p.cpp b/src/kxmlguifactory_p.cpp
--- a/src/kxmlguifactory_p.cpp
+++ b/src/kxmlguifactory_p.cpp
@@ -204,7 +204,7 @@
         plugActionList(state, mIt);
     }
 
-    Q_FOREACH (ContainerNode *child, children) {
+    for (ContainerNode *child : qAsConst(children)) {
         child->plugActionList(state);
     }
 }
@@ -244,7 +244,7 @@
         unplugActionList(state, mIt);
     }
 
-    Q_FOREACH (ContainerNode *child, children) {
+    for (ContainerNode *child : qAsConst(children)) {
         child->unplugActionList(state);
     }
 }