KDE 4.9 has been released and it brings some great UI improvements. As we reported earlier, some of the key changes are:

• Improvements in Dolphin File Manager, Konsole, Activities and KWin Window manager.
• Enhanced apps like Okular, Kopete, KDE PIM and more.
• Stability improvements.
• Improvements in networking and general responsiveness of KDE.

It's extremely easy if you are running Linux Mint 13 KDE or Kubuntu 12.04 to upgrade to 4.9. All you need to do is add the backport ppa by running the below command and then upgrade your system:

sudo apt-add-repository ppa:kubuntu-ppa/backports -y
sudo apt-get update
sudo apt-get dist-upgrade

If you are upgrading to KDE 4.9 let us know what has been your experience so far.

Thanks @William Talkington