diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 17545f32e..98d2a7d2a 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -549,8 +549,13 @@ bool MainWindow::queryClose()
 
     // Check what processes are running, excluding the shell
     QStringList processesRunning;
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    const auto uniqueSessions = QSet<Session*>::fromList(_viewManager->sessions());
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    // Need to make a local copy so the begin() and end() point to the same QList
+    const QList<Session*> sessionList = _viewManager->sessions();
+    const QSet<Session*> uniqueSessions(sessionList.begin(), sessionList.end());
+#else
+    const QSet<Session*> uniqueSessions = QSet<Session*>::fromList(_viewManager->sessions());
+#endif
 
     for (Session *session : uniqueSessions) {
         if ((session == nullptr) || !session->isForegroundProcessActive()) {
diff --git a/src/ProcessInfo.cpp b/src/ProcessInfo.cpp
index 7196dc1f3..aa61a41fa 100644
--- a/src/ProcessInfo.cpp
+++ b/src/ProcessInfo.cpp
@@ -131,8 +131,13 @@ QSet<QString> ProcessInfo::commonDirNames()
     if (forTheFirstTime) {
         const KSharedConfigPtr &config = KSharedConfig::openConfig();
         const KConfigGroup &configGroup = config->group("ProcessInfo");
-        // Once Qt5.14+ is the mininum, change to use range constructors
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+        // Need to make a local copy so the begin() and end() point to the same QList
+        const QStringList commonDirsList = configGroup.readEntry("CommonDirNames", QStringList());
+        _commonDirNames = QSet<QString>(commonDirsList.begin(), commonDirsList.end());
+#else
         _commonDirNames = QSet<QString>::fromList(configGroup.readEntry("CommonDirNames", QStringList()));
+#endif
 
         forTheFirstTime = false;
     }
diff --git a/src/ProfileManager.cpp b/src/ProfileManager.cpp
index db7f8b192..bde6e6b45 100644
--- a/src/ProfileManager.cpp
+++ b/src/ProfileManager.cpp
@@ -309,8 +309,7 @@ void ProfileManager::saveSettings()
 
 QList<Profile::Ptr> ProfileManager::sortedFavorites()
 {
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    QList<Profile::Ptr> favorites = findFavorites().toList();
+    QList<Profile::Ptr> favorites = findFavorites().values();
 
     sortProfiles(favorites);
     return favorites;
@@ -320,14 +319,12 @@ QList<Profile::Ptr> ProfileManager::allProfiles()
 {
     loadAllProfiles();
 
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    return _profiles.toList();
+    return _profiles.values();
 }
 
 QList<Profile::Ptr> ProfileManager::loadedProfiles() const
 {
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    return _profiles.toList();
+    return _profiles.values();
 }
 
 Profile::Ptr ProfileManager::defaultProfile() const
@@ -643,9 +640,12 @@ void ProfileManager::loadFavorites()
     QSet<QString> favoriteSet;
 
     if (favoriteGroup.hasKey("Favorites")) {
-        QStringList list = favoriteGroup.readEntry("Favorites", QStringList());
-        // Once Qt5.14+ is the mininum, change to use range constructors
+        const QStringList list = favoriteGroup.readEntry("Favorites", QStringList());
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+        favoriteSet = QSet<QString>(list.begin(), list.end());
+#else
         favoriteSet = QSet<QString>::fromList(list);
+#endif
     }
 
     // look for favorites among those already loaded
diff --git a/src/SessionController.cpp b/src/SessionController.cpp
index c78b60f76..c97b20e7c 100644
--- a/src/SessionController.cpp
+++ b/src/SessionController.cpp
@@ -1058,9 +1058,12 @@ void SessionController::copyInputToAllTabs()
     // Find our window ...
     const KXmlGuiWindow* myWindow = findWindow(_view);
 
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    QSet<Session*> group =
-        QSet<Session*>::fromList(SessionManager::instance()->sessions());
+    const QList<Session *> sessionsList = SessionManager::instance()->sessions();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    QSet<Session*> group(sessionsList.begin(), sessionsList.end());
+#else
+    QSet<Session*> group = QSet<Session*>::fromList(sessionsList);
+#endif
     for (auto session : group) {
         // First, ensure that the session is removed
         // (necessary to avoid duplicates on addSession()!)
@@ -1090,8 +1093,13 @@ void SessionController::copyInputToSelectedTabs()
     QPointer<CopyInputDialog> dialog = new CopyInputDialog(_view);
     dialog->setMasterSession(_session);
 
-    // Once Qt5.14+ is the mininum, change to use range constructors
-    QSet<Session*> currentGroup = QSet<Session*>::fromList(_copyToGroup->sessions());
+    const QList<Session*> sessionsList = _copyToGroup->sessions();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    QSet<Session*> currentGroup(sessionsList.begin(), sessionsList.end());
+#else
+    QSet<Session*> currentGroup = QSet<Session*>::fromList(sessionsList);
+#endif
+
     currentGroup.remove(_session);
 
     dialog->setChosenSessions(currentGroup);
@@ -1129,8 +1137,13 @@ void SessionController::copyInputToNone()
     }
 
     // Once Qt5.14+ is the mininum, change to use range constructors
-    QSet<Session*> group =
-        QSet<Session*>::fromList(SessionManager::instance()->sessions());
+    const QList<Session*> groupList = SessionManager::instance()->sessions();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    QSet<Session*> group(groupList.begin(), groupList.end());
+#else
+    QSet<Session*> group = QSet<Session*>::fromList(groupList);
+#endif
+
     for (auto iterator : group) {
         Session* session = iterator;
 
diff --git a/src/ViewSplitter.cpp b/src/ViewSplitter.cpp
index ea208aef0..40bc0c482 100644
--- a/src/ViewSplitter.cpp
+++ b/src/ViewSplitter.cpp
@@ -88,7 +88,6 @@ ViewSplitter *ViewSplitter::activeSplitter()
 void ViewSplitter::updateSizes()
 {
     const int space = (orientation() == Qt::Horizontal ? width() : height()) / count();
-    // Once Qt5.14+ is the mininum, change to use range constructors
     setSizes(QVector<int>(count(), space).toList());
 }