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diff --git i/cmake/QtPluginHelpers.cmake w/cmake/QtPluginHelpers.cmake
index 20bde6f310d..9b514eb2ee7 100644
--- i/cmake/QtPluginHelpers.cmake
+++ w/cmake/QtPluginHelpers.cmake
@@ -526,6 +526,7 @@ function(qt_internal_add_darwin_permission_plugin permission)
         LIBRARIES
             Qt::Core
             Qt::CorePrivate
+            ${FWFoundation}
     )

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diff --git i/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm w/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
index b58f58caebb..10bbc464e3d 100644
--- i/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
+++ w/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
@@ -303,6 +303,7 @@ public:
 
     bool show(Qt::WindowModality windowModality, QWindow *parent)
     {
+        return false;
         Q_UNUSED(parent);

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diff --git i/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp w/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
index 2eee4df0724..1f67f5818a5 100644
--- i/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
+++ w/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
@@ -12717,15 +12717,15 @@ void tst_QWidget::setParentChangesFocus_data()
 
     for (const bool before : {true, false}) {
         const char *tag = before ? "before" : "after";
-        QTest::addRow("give dialog parent, %s", tag)
-            << Qt::Dialog << false << Qt::Dialog << true << before << "lineEdit";

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diff --git i/src/corelib/itemmodels/qabstractitemmodel.cpp w/src/corelib/itemmodels/qabstractitemmodel.cpp
index fcf6e69534..7d60e94c95 100644
--- i/src/corelib/itemmodels/qabstractitemmodel.cpp
+++ w/src/corelib/itemmodels/qabstractitemmodel.cpp
@@ -30,9 +30,11 @@ QT_IMPL_METATYPE_EXTERN(QModelIndexList)
 QPersistentModelIndexData *QPersistentModelIndexData::create(const QModelIndex &index)
 {
     Q_ASSERT(index.isValid()); // we will _never_ insert an invalid index in the list
-    QPersistentModelIndexData *d = nullptr;
     QAbstractItemModel *model = const_cast<QAbstractItemModel *>(index.model());

torarnv

src/corelib/text/qlocale_win.cpp:26:namespace winrt::impl
src/corelib/text/qlocale_win.cpp:669:        result << QString::fromStdString(winrt::to_string(lang));
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:10:namespace winrt::impl
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:103:    using namespace winrt::Windows::Networking::Connectivity;
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:106:            [this](const winrt::Windows::Foundation::IInspectable sender) {
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:129:    using namespace winrt::Windows::Networking::Connectivity;
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:177:using namespace winrt::Windows::Networking::Connectivity;
src/plugins/networkinformation/networklistmanager/qnetworklistmanagerevents.cpp:219:    using namespace winrt::Windows::Networking::Connectivity;
src/plugins/networ

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diff --git i/src/gui/kernel/qplatformmenu.cpp w/src/gui/kernel/qplatformmenu.cpp
index d629c8b02d3..0ff1144c1cf 100644
--- i/src/gui/kernel/qplatformmenu.cpp
+++ w/src/gui/kernel/qplatformmenu.cpp
@@ -3,12 +3,24 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qplatformmenu.h"
+#include "qplatformmenu_p.h"
 

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diff --git i/src/gui/text/coretext/qcoretextfontdatabase.mm w/src/gui/text/coretext/qcoretextfontdatabase.mm
index e651c57abec..637fdac4186 100644
--- i/src/gui/text/coretext/qcoretextfontdatabase.mm
+++ w/src/gui/text/coretext/qcoretextfontdatabase.mm
@@ -230,6 +230,11 @@ void QCoreTextFontDatabase::populateFamily(const QString &familyName)
 void QCoreTextFontDatabase::invalidate()
 {
     m_hasPopulatedAliases = false;
+
+    // The font database no longer has any references to the system descriptors,

torarnv

diff --git i/src/tools/moc/moc.cpp w/src/tools/moc/moc.cpp
index 979c986a417..ec3c9cf87a2 100644
--- i/src/tools/moc/moc.cpp
+++ w/src/tools/moc/moc.cpp
@@ -1428,6 +1428,9 @@ void Moc::parsePluginData(ClassDef *def)
         } else if (l == "URI") {
             next(STRING_LITERAL);
             def->pluginData.uri = unquotedLexem();
+        } else if (l == "JSON") {
+            next(STRING_LITERAL);

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diff --git i/src/corelib/kernel/qobject.cpp w/src/corelib/kernel/qobject.cpp
index e07631d0015..bea4e34f70c 100644
--- i/src/corelib/kernel/qobject.cpp
+++ w/src/corelib/kernel/qobject.cpp
@@ -2210,8 +2210,9 @@ void QObjectPrivate::setParent_helper(QObject *o)
     }
     parent = o;
     if (parent) {
+        const auto *parentThreadData = parent->d_func()->threadData.loadRelaxed();
         // object hierarchies are constrained to a single thread

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diff --git c/cmake/QtPublicPluginHelpers.cmake i/cmake/QtPublicPluginHelpers.cmake
index 6dfaead7553..eef324e4e64 100644
--- c/cmake/QtPublicPluginHelpers.cmake
+++ i/cmake/QtPublicPluginHelpers.cmake
@@ -461,8 +461,10 @@ function(__qt_internal_include_plugin_packages target)
 
         list(APPEND "QT_ALL_PLUGINS_FOUND_BY_FIND_PACKAGE_${__plugin_type}" "${plugin_target}")
 
-        # Auto-linkage should be set up only for static library builds.
-        if(NOT QT6_IS_SHARED_LIBS_BUILD)