diff --git a/src/app/tape/tmainwindow.cpp b/src/app/tape/tmainwindow.cpp
index 3b4120893..474ab4d39 100644
--- a/src/app/tape/tmainwindow.cpp
+++ b/src/app/tape/tmainwindow.cpp
@@ -2824,8 +2824,13 @@ void TMainWindow::WriteSettings()
 //---------------------------------------------------------------------------------------------------------------------
 QStringList TMainWindow::FilterMeasurements(const QStringList &mNew, const QStringList &mFilter)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    const auto import = QSet<QString>(mNew.begin(), mNew.end()).subtract(QSet<QString>(mFilter.begin(), mFilter.end()));
+    return QStringList(import.begin(), import.end());
+#else
     const QSet<QString> import = mNew.toSet().subtract(mFilter.toSet());
     return QStringList(import.toList());
+#endif
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -3123,7 +3128,12 @@ QString TMainWindow::CheckMName(const QString &name, const QSet<QString> &import
     }
     else
     {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+        const QStringList allGroupNames = AllGroupNames();
+        if (not QSet<QString>(allGroupNames.begin(), allGroupNames.end()).contains(name))
+#else
         if (not AllGroupNames().toSet().contains(name))
+#endif
         {
             throw VException(tr("Measurement '%1' is not one of known measurements.").arg(name));
         }
diff --git a/src/app/valentina/mainwindowsnogui.cpp b/src/app/valentina/mainwindowsnogui.cpp
index 7fcb2bbd0..a60bb408b 100644
--- a/src/app/valentina/mainwindowsnogui.cpp
+++ b/src/app/valentina/mainwindowsnogui.cpp
@@ -1843,10 +1843,22 @@ QSharedPointer<VMeasurements> MainWindowsNoGUI::OpenMeasurementFile(const QStrin
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindowsNoGUI::CheckRequiredMeasurements(const VMeasurements *m) const
 {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    QStringList patternMeasurments = doc->ListMeasurements();
+    QStringList bodyMeasurments = m->ListAll();
+    const auto match = QSet<QString>(patternMeasurments.begin(), patternMeasurments.end())
+            .subtract(QSet<QString>(bodyMeasurments.begin(), bodyMeasurments.end()));
+#else
     const QSet<QString> match = doc->ListMeasurements().toSet().subtract(m->ListAll().toSet());
+#endif
+
     if (not match.isEmpty())
     {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+        QList<QString> list = QList<QString>(match.begin(), match.end());
+#else
         QList<QString> list = match.toList();
+#endif
         for (int i = 0; i < list.size(); ++i)
         {
             list[i] = qApp->TrVars()->MToUser(list.at(i));
diff --git a/src/libs/ifc/xml/vabstractpattern.cpp b/src/libs/ifc/xml/vabstractpattern.cpp
index 722313bc4..419fa2ce3 100644
--- a/src/libs/ifc/xml/vabstractpattern.cpp
+++ b/src/libs/ifc/xml/vabstractpattern.cpp
@@ -243,7 +243,11 @@ QList<QString> GetTokens(const VFormulaField &formula)
 //---------------------------------------------------------------------------------------------------------------------
 void GatherTokens(QSet<QString> &tokens, const QList<QString> &tokenList)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    tokens = tokens.unite(QSet<QString>(tokenList.begin(), tokenList.end()));
+#else
     tokens = tokens.unite(tokenList.toSet());
+#endif
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -294,11 +298,21 @@ QStringList VAbstractPattern::ListMeasurements() const
 {
     const QFuture<QStringList> futureIncrements = QtConcurrent::run(this, &VAbstractPattern::ListIncrements);
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    QSet<QString> results = QtConcurrent::blockingMappedReduced(ListExpressions(), GetTokens, GatherTokens);
+    const auto tokens = QList<QString>(results.begin(), results.end());
+#else
     const QList<QString> tokens = QtConcurrent::blockingMappedReduced(ListExpressions(), GetTokens,
                                                                       GatherTokens).toList();
+#endif
 
     QSet<QString> measurements;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    QStringList result = futureIncrements.result();
+    QSet<QString> others = QSet<QString>(result.begin(), result.end());
+#else
     QSet<QString> others = futureIncrements.result().toSet();
+#endif
 
     for (const auto &token : tokens)
     {
@@ -310,7 +324,7 @@ QStringList VAbstractPattern::ListMeasurements() const
         IsVariable(token) || IsFunction(token) ? others.insert(token) : measurements.insert(token);
     }
 
-    return QStringList(measurements.toList());
+    return QStringList(measurements.values());
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/vlayout/vlayoutgenerator.cpp b/src/libs/vlayout/vlayoutgenerator.cpp
index 192f4cd88..6d2a4ac25 100644
--- a/src/libs/vlayout/vlayoutgenerator.cpp
+++ b/src/libs/vlayout/vlayoutgenerator.cpp
@@ -454,7 +454,11 @@ QList<VLayoutPiece> VLayoutGenerator::MoveDetails(qreal length, const QVector<VL
 {
     if (qFuzzyIsNull(length))
     {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+        return QList<VLayoutPiece>(details.begin(), details.end());
+#else
         return details.toList();
+#endif
     }
 
     QList<VLayoutPiece> newDetails;
diff --git a/src/libs/vlayout/vlayoutpiece.cpp b/src/libs/vlayout/vlayoutpiece.cpp
index 3e6e4a32b..6c400d478 100644
--- a/src/libs/vlayout/vlayoutpiece.cpp
+++ b/src/libs/vlayout/vlayoutpiece.cpp
@@ -474,7 +474,11 @@ QVector<T> VLayoutPiece::Map(const QVector<T> &points) const
 
     if (d->mirror)
     {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+        auto list = QList<T>(p.begin(), p.end());
+#else
         QList<T> list = p.toList();
+#endif
         for (int k=0, s=list.size(), max=(s/2); k<max; k++)
         {
             list.swap(k, s-(1+k));
diff --git a/src/libs/vpatterndb/vcontainer.cpp b/src/libs/vpatterndb/vcontainer.cpp
index 29b282520..9f13fbecc 100644
--- a/src/libs/vpatterndb/vcontainer.cpp
+++ b/src/libs/vpatterndb/vcontainer.cpp
@@ -672,7 +672,7 @@ QStringList VContainer::AllUniqueNames(const QString &nspace)
     if (uniqueNames.contains(nspace))
     {
         QStringList names = builInFunctions;
-        names.append(uniqueNames.value(nspace).toList());
+        names.append(uniqueNames.value(nspace).values());
         return names;
     }
     else
@@ -720,7 +720,7 @@ void VContainer::ClearUniqueNames() const
 //---------------------------------------------------------------------------------------------------------------------
 void VContainer::ClearUniqueIncrementNames() const
 {
-    const QList<QString> list = uniqueNames.value(d->nspace).toList();
+    const QList<QString> list = uniqueNames.value(d->nspace).values();
     ClearUniqueNames();
 
     for(auto &name : list)
@@ -823,7 +823,11 @@ const QHash<QString, QSharedPointer<VInternalVariable> > *VContainer::DataVariab
 //---------------------------------------------------------------------------------------------------------------------
 VContainerData::~VContainerData()
 {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    if (ref.loadRelaxed() == 0)
+#else
     if (ref.load() == 0)
+#endif
     {
         --VContainer::copyCounter[nspace];
     }
diff --git a/src/libs/vpatterndb/vpiece.cpp b/src/libs/vpatterndb/vpiece.cpp
index 8faa42af9..4ccce76b9 100644
--- a/src/libs/vpatterndb/vpiece.cpp
+++ b/src/libs/vpatterndb/vpiece.cpp
@@ -60,7 +60,7 @@ QVector<quint32> PieceMissingNodes(const QVector<quint32> &d1Nodes, const QVecto
         set2.insert(d2Nodes.at(j));
     }
 
-    const QList<quint32> set3 = set1.subtract(set2).toList();
+    const QList<quint32> set3 = set1.subtract(set2).values();
     QVector<quint32> r;
     for (qint32 i = 0; i < set3.size(); ++i)
     {
diff --git a/src/libs/vpatterndb/vpiecepath.cpp b/src/libs/vpatterndb/vpiecepath.cpp
index 11c7faf3c..7c6ec8624 100644
--- a/src/libs/vpatterndb/vpiecepath.cpp
+++ b/src/libs/vpatterndb/vpiecepath.cpp
@@ -660,7 +660,7 @@ QVector<quint32> VPiecePath::MissingNodes(const VPiecePath &path) const
         set2.insert(path.at(j).GetId());
     }
 
-    const QList<quint32> set3 = set1.subtract(set2).toList();
+    const QList<quint32> set3 = set1.subtract(set2).values();
     QVector<quint32> nodes;
     nodes.reserve(set3.size());
     for (qint32 i = 0; i < set3.size(); ++i)
diff --git a/src/libs/vtools/undocommands/savetooloptions.cpp b/src/libs/vtools/undocommands/savetooloptions.cpp
index 36a9b7bb1..3b7e11046 100644
--- a/src/libs/vtools/undocommands/savetooloptions.cpp
+++ b/src/libs/vtools/undocommands/savetooloptions.cpp
@@ -96,7 +96,12 @@ QVector<quint32> SaveToolOptions::Missing(const QList<quint32> &list1, const QLi
 {
     QSet<quint32> set1 = QSet<quint32>::fromList(list1);
     QSet<quint32> set2 = QSet<quint32>::fromList(list2);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    QSet<quint32> substracted = set1.subtract(set2);
+    return QVector<quint32>(substracted.begin(), substracted.end());
+#else
     return set1.subtract(set2).toList().toVector();
+#endif
 }
 
 //---------------------------------------------------------------------------------------------------------------------