diff --git a/.travis.yml b/.travis.yml
index 61d0476..6b4afaa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,30 @@ git:
 matrix:
   fast_finish: true
   include:
+  - name: Ubuntu qmake Qt5.5.1
+    os: linux
+    dist: trusty
+    group: stable
+    addons:
+      apt:
+        sources:
+        - ubuntu-toolchain-r-test
+        - sourceline: 'ppa:beineri/opt-qt551-trusty'
+        update: true
+        packages:
+        - qt55base
+        - qt55tools
+        - gcc-6
+        - g++-6
+        - libc6-i386
+    script:
+        - PATH="/opt/qt55/bin:$PATH"
+        - CXX="g++-6"
+        - CC="gcc-6"
+        - qt55-env.sh
+        - qmake
+        - make
+        - make install
   - name: Ubuntu qmake dll
     os: linux
     dist: xenial
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d6adb7a..1c9a0f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.3)
 set(ads_VERSION "2.3.2")
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_AUTOMOC ON)
@@ -8,7 +8,7 @@ set(CMAKE_AUTORCC ON)
 project(QtAdvancedDockingSystem VERSION ${ads_VERSION})
 option(BUILD_STATIC "Build the static library" OFF)
 option(BUILD_EXAMPLES "Build the examples" ON)
-set(REQUIRED_QT_VERSION 5.7.0)
+set(REQUIRED_QT_VERSION 5.5.0)
 find_package(Qt5Core ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Gui ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Widgets ${REQUIRED_QT_VERSION} REQUIRED)
diff --git a/demo/CMakeLists.txt b/demo/CMakeLists.txt
index 31a679f..7580503 100644
--- a/demo/CMakeLists.txt
+++ b/demo/CMakeLists.txt
@@ -1,12 +1,12 @@
 cmake_minimum_required(VERSION 3.3)
-set (CMAKE_CXX_STANDARD 11)
+set (CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTORCC ON)
 project(ads_demo VERSION "1.0") 
-set(REQUIRED_QT_VERSION 5.7.0)
+set(REQUIRED_QT_VERSION 5.5.0)
 find_package(Qt5Core ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Gui ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Widgets ${REQUIRED_QT_VERSION} REQUIRED)
diff --git a/demo/demo.pro b/demo/demo.pro
index 5444514..2d787e9 100644
--- a/demo/demo.pro
+++ b/demo/demo.pro
@@ -3,7 +3,7 @@ ADS_OUT_ROOT = $${OUT_PWD}/..
 TARGET = AdvancedDockingSystemDemo
 DESTDIR = $${ADS_OUT_ROOT}/lib
 QT += core gui widgets
-CONFIG += c++11
+CONFIG += c++14
 CONFIG += debug_and_release
 DEFINES += QT_DEPRECATED_WARNINGS
 
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 9fa8931..dafffa7 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -1,11 +1,11 @@
 cmake_minimum_required(VERSION 3.3)
-set (CMAKE_CXX_STANDARD 11)
+set (CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTOUIC ON)
 project(ads_example VERSION "1.0") 
-set(REQUIRED_QT_VERSION 5.7.0)
+set(REQUIRED_QT_VERSION 5.5.0)
 find_package(Qt5Core ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Gui ${REQUIRED_QT_VERSION} REQUIRED)
 find_package(Qt5Widgets ${REQUIRED_QT_VERSION} REQUIRED)
diff --git a/example/example.pro b/example/example.pro
index 1245326..6b37fd4 100644
--- a/example/example.pro
+++ b/example/example.pro
@@ -5,7 +5,7 @@ QT += core gui widgets
 TARGET = Example1
 DESTDIR = $${ADS_OUT_ROOT}/lib
 TEMPLATE = app
-CONFIG += c++11
+CONFIG += c++14
 CONFIG += debug_and_release
 adsBuildStatic {
     DEFINES += ADS_STATIC
diff --git a/src/DockAreaWidget.cpp b/src/DockAreaWidget.cpp
index b1b4218..cddfe49 100644
--- a/src/DockAreaWidget.cpp
+++ b/src/DockAreaWidget.cpp
@@ -98,7 +98,7 @@ public:
 	 */
 	void insertWidget(int index, QWidget* Widget)
 	{
-        Widget->setParent(nullptr);
+		Widget->setParent(nullptr);
 		if (index < 0)
 		{
 			index = m_Widgets.count();
@@ -127,7 +127,7 @@ public:
 			auto LayoutItem = m_ParentLayout->takeAt(1);
 			if (LayoutItem)
 			{
-                LayoutItem->widget()->setParent(nullptr);
+				LayoutItem->widget()->setParent(nullptr);
 			}
 			m_CurrentWidget = nullptr;
 			m_CurrentIndex = -1;
@@ -167,7 +167,7 @@ public:
 		auto LayoutItem = m_ParentLayout->takeAt(1);
 		if (LayoutItem)
 		{
-            LayoutItem->widget()->setParent(nullptr);
+			LayoutItem->widget()->setParent(nullptr);
 		}
 
 		m_ParentLayout->addWidget(next);
@@ -315,9 +315,9 @@ void DockAreaWidgetPrivate::createTitleBar()
 {
 	TitleBar = new CDockAreaTitleBar(_this);
 	Layout->addWidget(TitleBar);
-    QObject::connect(tabBar(), &CDockAreaTabBar::tabCloseRequested, _this, &CDockAreaWidget::onTabCloseRequested);
-    QObject::connect(TitleBar, &CDockAreaTitleBar::tabBarClicked, _this, &CDockAreaWidget::setCurrentIndex);
-    QObject::connect(tabBar(), &CDockAreaTabBar::tabMoved, _this, &CDockAreaWidget::reorderDockWidget);
+	QObject::connect(tabBar(), &CDockAreaTabBar::tabCloseRequested, _this, &CDockAreaWidget::onTabCloseRequested);
+	QObject::connect(TitleBar, &CDockAreaTitleBar::tabBarClicked, _this, &CDockAreaWidget::setCurrentIndex);
+	QObject::connect(tabBar(), &CDockAreaTabBar::tabMoved, _this, &CDockAreaWidget::reorderDockWidget);
 }
 
 
diff --git a/src/DockContainerWidget.cpp b/src/DockContainerWidget.cpp
index 10d7b80..6cc3a13 100644
--- a/src/DockContainerWidget.cpp
+++ b/src/DockContainerWidget.cpp
@@ -127,7 +127,7 @@ public:
 	QGridLayout* Layout = nullptr;
 	QSplitter* RootSplitter = nullptr;
 	bool isFloating = false;
-    CDockAreaWidget* LastAddedAreaCache[5];
+	CDockAreaWidget* LastAddedAreaCache[5];
 	int VisibleDockAreaCount = -1;
 	CDockAreaWidget* TopLevelDockArea = nullptr;
 
@@ -266,7 +266,7 @@ public:
 	/**
 	 * Helper function for creation of new splitter
 	 */
-    CDockSplitter* newSplitter(Qt::Orientation orientation, QWidget* parent = nullptr)
+	CDockSplitter* newSplitter(Qt::Orientation orientation, QWidget* parent = nullptr)
 	{
 		CDockSplitter* s = new CDockSplitter(orientation, parent);
 		s->setOpaqueResize(DockManager->configFlags().testFlag(CDockManager::OpaqueSplitterResize));
@@ -290,7 +290,7 @@ public:
 DockContainerWidgetPrivate::DockContainerWidgetPrivate(CDockContainerWidget* _public) :
 	_this(_public)
 {
-    std::fill(std::begin(LastAddedAreaCache),std::end(LastAddedAreaCache), nullptr);
+	std::fill(std::begin(LastAddedAreaCache),std::end(LastAddedAreaCache), nullptr);
 }
 
 
@@ -540,10 +540,10 @@ void DockContainerWidgetPrivate::appendDockAreas(const QList<CDockAreaWidget*> N
 	DockAreas.append(NewDockAreas);
 	for (auto DockArea : NewDockAreas)
 	{
-        QObject::connect(DockArea,
-            &CDockAreaWidget::viewToggled,
-            _this,
-            std::bind(&DockContainerWidgetPrivate::onDockAreaViewToggled, this, std::placeholders::_1));
+		QObject::connect(DockArea,
+			&CDockAreaWidget::viewToggled,
+			_this,
+			std::bind(&DockContainerWidgetPrivate::onDockAreaViewToggled, this, std::placeholders::_1));
 	}
 }
 
@@ -613,7 +613,7 @@ bool DockContainerWidgetPrivate::restoreSplitter(QXmlStreamReader& s,
 	QSplitter* Splitter = nullptr;
 	if (!Testing)
 	{
-        Splitter = newSplitter(static_cast<Qt::Orientation>(Orientation));
+		Splitter = newSplitter(static_cast<Qt::Orientation>(Orientation));
 	}
 	bool Visible = false;
 	QList<int> Sizes;
@@ -1054,7 +1054,7 @@ void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 
 	// Remove are from parent splitter and recursively hide tree of parent
 	// splitters if it has no visible content
-    area->setParent(nullptr);
+	area->setParent(nullptr);
 	internal::hideEmptyParentSplitters(Splitter);
 
 	// If splitter has more than 1 widgets, we are finished and can leave
@@ -1085,7 +1085,7 @@ void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 		}
 
 		// We replace the superfluous RootSplitter with the ChildSplitter
-        ChildSplitter->setParent(nullptr);
+		ChildSplitter->setParent(nullptr);
 		QLayoutItem* li = d->Layout->replaceWidget(Splitter, ChildSplitter);
 		d->RootSplitter = ChildSplitter;
 		delete li;
@@ -1126,14 +1126,14 @@ CDockAreaWidget* CDockContainerWidget::dockAreaAt(const QPoint& GlobalPos) const
 		}
 	}
 
-    return nullptr;
+	return nullptr;
 }
 
 
 //============================================================================
 CDockAreaWidget* CDockContainerWidget::dockArea(int Index) const
 {
-    return (Index < dockAreaCount()) ? d->DockAreas[Index] : nullptr;
+	return (Index < dockAreaCount()) ? d->DockAreas[Index] : nullptr;
 }
 
 
diff --git a/src/DockManager.cpp b/src/DockManager.cpp
index 638bfc0..44a0a2b 100644
--- a/src/DockManager.cpp
+++ b/src/DockManager.cpp
@@ -72,7 +72,7 @@ struct DockManagerPrivate
 	QMenu* ViewMenu;
 	CDockManager::eViewMenuInsertionOrder MenuInsertionOrder = CDockManager::MenuAlphabeticallySorted;
 	bool RestoringState = false;
-    CDockManager::ConfigFlags ConfigFlags = CDockManager::DefaultConfig;
+	CDockManager::ConfigFlags ConfigFlags = CDockManager::DefaultConfig;
 
 	/**
 	 * Private data constructor
diff --git a/src/ads_globals.cpp b/src/ads_globals.cpp
index 86133b5..2c6f17e 100644
--- a/src/ads_globals.cpp
+++ b/src/ads_globals.cpp
@@ -44,7 +44,7 @@ namespace internal
 void replaceSplitterWidget(QSplitter* Splitter, QWidget* From, QWidget* To)
 {
 	int index = Splitter->indexOf(From);
-    From->setParent(nullptr);
+	From->setParent(nullptr);
 	Splitter->insertWidget(index, To);
 }
 
@@ -90,18 +90,6 @@ void hideEmptyParentSplitters(CDockSplitter* Splitter)
 	}
 }
 
-CDockInsertParam::CDockInsertParam(Qt::Orientation orient, bool bottomRight)
-    : QPair<Qt::Orientation, bool>(orient,bottomRight)
-{}
-
-CDockInsertParam::CDockInsertParam(const CDockInsertParam &p)
-    : QPair<Qt::Orientation, bool>(p)
-{}
-
-CDockInsertParam::CDockInsertParam(CDockInsertParam &&p)
-    : QPair<Qt::Orientation, bool>(std::move(p))
-{}
-
 } // namespace internal
 } // namespace ads
 
diff --git a/src/ads_globals.h b/src/ads_globals.h
index caa76af..aa5c99f 100644
--- a/src/ads_globals.h
+++ b/src/ads_globals.h
@@ -110,10 +110,7 @@ void hideEmptyParentSplitters(CDockSplitter* FirstParentSplitter);
 class CDockInsertParam : public QPair<Qt::Orientation, bool>
 {
 public:
-    CDockInsertParam() = default;
-    CDockInsertParam(Qt::Orientation orient, bool append);
-    CDockInsertParam(const CDockInsertParam &p);
-    CDockInsertParam(CDockInsertParam &&p);
+	using QPair::QPair;
 	Qt::Orientation orientation() const {return this->first;}
 	bool append() const {return this->second;}
 	int insertOffset() const {return append() ? 1 : 0;}
diff --git a/src/src.pro b/src/src.pro
index 5703459..b97c1cf 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -1,5 +1,5 @@
 ADS_OUT_ROOT = $${OUT_PWD}/..
-CONFIG += c++11
+CONFIG += c++14
 CONFIG += debug_and_release
 TARGET = $$qtLibraryTarget(qtadvanceddocking)
 DEFINES += QT_DEPRECATED_WARNINGS