How to upgrade Oracle Virtualbox 4.3.36 to 5.0.22 on Elementary OS 0.3.2?

Since the Elementary OS 0.3.2 based on Ubuntu 14.04, we need to use the Ubuntu 14.04 repository:

Step 1:

sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian trusty contrib" >> /etc/apt/sources.list.d/virtualbox.list'

 

Step 2:

wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

 

Step 3:

sudo apt-get update

 

Step 4:

sudo apt-get install virtualbox-5.0

 

Remark: Please backup all the VM before upgrade (To avoid any data loss)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

Reference:
http://www.howopensource.com/2013/04/install-virtualbox-ubuntu-ppa/
http://ubuntuhandbook.org/index.php/2015/09/virtualbox-5-0-4-released/
http://ubuntuhandbook.org/index.php/2016/06/oracle-virtualbox-5-0-22-released-with-various-fixes/

How to upgrade Oracle Virtualbox 4.3.36 to 5.0.22 on Elementary OS 0.3.2?