Install QT 5.6.1 on Linux Mint and Ubuntu Derivative System

How to install QT 5.6.1 Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 wily werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS),  Linux Mint 18 sarah, Linux Mint 17.1, Linux Mint 17.2, Linux Mint 17.3 and other Ubuntu derivative systems


Qt is an open source project that works as a cross-platform SDK (Software Development Kit) and GUI toolkit with APIs for C++ programming. It is a cross-platform framework, supporting the Linux, Microsoft Windows and Mac OS X operating systems.

The project is comprised of the Qt framework, which includes intuitive APIs for C++ and CSS/JavaScript-like programming languages, Qt Creator IDE, a powerful and cross-platform integrated development environment, as well as several other tools and toolchains.

When installing the program in a Linux-based operating system, it will provide users with several command-line and graphical utilities that can be used to configure the look and feel of Qt applications, as well as to compile Qt programs or choose the default version to use, if multiple ones are installed.

The Qt Creator
While Qt Creator comes with UI designer tools and on-device debugging functionality, the included tools and toolchains provide Qt developers with everything they need, from simulators and local or remote compilers, to internationalization support and device toolchains.

Qt 5.6.1 Change Files :

qtactiveqt: http://code.qt.io/cgit/qt/qtactiveqt.git/tree/dist/changes-5.6.1?h=5.6.1
qtandroidextras: http://code.qt.io/cgit/qt/qtandroidextras.git/tree/dist/changes-5.6.1?h=5.6.1
qtbase: http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.6.1?h=5.6.1
qtconnectivity: http://code.qt.io/cgit/qt/qtconnectivity.git/tree/dist/changes-5.6.1?h=5.6.1
qtdeclarative: http://code.qt.io/cgit/qt/qtdeclarative.git/tree/dist/changes-5.6.1?h=5.6.1
qtdoc: http://code.qt.io/cgit/qt/qtdoc.git/tree/dist/changes-5.6.1?h=5.6.1
qtenginio: http://code.qt.io/cgit/qt/qtenginio.git/tree/dist/changes-1.1.2
qtgraphicaleffects: http://code.qt.io/cgit/qt/qtgraphicaleffects.git/tree/dist/changes-5.6.1?h=5.6.1
qtimageformats: http://code.qt.io/cgit/qt/qtimageformats.git/tree/dist/changes-5.6.1?h=5.6.1
qtlocation: http://code.qt.io/cgit/qt/qtlocation.git/tree/dist/changes-5.6.1?h=5.6.1
qtmacextras: http://code.qt.io/cgit/qt/qtmacextras.git/tree/dist/changes-5.6.1?h=5.6.1
qtmultimedia: http://code.qt.io/cgit/qt/qtmultimedia.git/tree/dist/changes-5.6.1?h=5.6.1
qtquickcontrols: http://code.qt.io/cgit/qt/qtquickcontrols.git/tree/dist/changes-5.6.1?h=5.6.1
qtscript: http://code.qt.io/cgit/qt/qtscript.git/tree/dist/changes-5.6.1?h=5.6.1
qtsensors: http://code.qt.io/cgit/qt/qtsensors.git/tree/dist/changes-5.6.1?h=5.6.1
qtserialport: http://code.qt.io/cgit/qt/qtserialport.git/tree/dist/changes-5.6.1?h=5.6.1
qtsvg: http://code.qt.io/cgit/qt/qtsvg.git/tree/dist/changes-5.6.1?h=5.6.1
qttranslations: http://code.qt.io/cgit/qt/qttranslations.git/tree/dist/changes-5.6.1?h=5.6.1
qttools: http://code.qt.io/cgit/qt/qttools.git/tree/dist/changes-5.6.1?h=5.6.1
qtwayland: http://code.qt.io/cgit/qt/qtwayland.git/tree/dist/changes-5.6.1?h=5.6.1
qtwebchannel: http://code.qt.io/cgit/qt/qtwebchannel.git/tree/dist/changes-5.6.1?h=5.6.1
qtwebengine: http://code.qt.io/cgit/qt/qtwebengine.git/tree/dist/changes-5.6.1?h=5.6.1
qtwebsockets: http://code.qt.io/cgit/qt/qtwebsockets.git/tree/dist/changes-5.6.1?h=5.6.1
qtwinextras: http://code.qt.io/cgit/qt/qtwinextras.git/tree/dist/changes-5.6.1?h=5.6.1
qtx11extras: http://code.qt.io/cgit/qt/qtx11extras.git/tree/dist/changes-5.6.1?h=5.6.1
qtxmlpatterns: http://code.qt.io/cgit/qt/qtxmlpatterns.git/tree/dist/changes-5.6.1?h=5.6.1

How to Install QT 5.6.1 on Linux Mint and Ubuntu Derivative System :