How to install Plasma Desktop 5.10 on Ubuntu 17.04

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Plasma Desktop 5.10 Changelog:

• Share odrs reviews instance between flatpak and packagekit.
• Fix compile.
• Fix duplicate Discover entry on the Application Menu.
• Update required KF5 and Kirigami dependencies.
• Readability & testability.
• Use Kirigami.Icon instead of QIconItem.
• Make sure transactions are started.
• Don't add weird spaces on debug messages.
• Remove useless casting.
• Make sure the focus is initially on the drawer.
• Use flatpak_get_system_installations to set up the system installations.
• Remove the concept of scope.
• Reduce semantics between user and system installations.
• Simplify.
• Improve interaction with --list* arguments.
• Properly construct strings.
• Make sure the backend has been set up properly.
• Queue some connections which cannot be autodetected.
• Don't open every file with the packagekit backend.
• Fix warning.
• Improve the FeaturedModel.
• Don't show anything with the PageHeader extra.
• Fix build, we apparently have to always return something.
• Include a background behind the extra part of the controls in PageHeader.
• Improve the behavior when closing.
• Let install button be flat in the toolbar, full elsewhere.
• Introduce the Launch button back.
• Fix few warnings. 
• And more…

Installation instructions: 
 
We can add this PPA to Ubuntu Operating  Systems and install Plasma Desktop with few easy commands.

Open terminal and insert command line...
 

$ sudo add-apt-repository ppa:kubuntu-ppa/backports $ sudo apt-get update $ sudo apt-get install plasma-desktop

 Option, uninstall Plasma Desktop
 

$ sudo apt-get install ppa-purge && sudo ppa-purge ppa:kubuntu-ppa/backports

 refer original : https://howto-ubuntunew.blogspot.com/