KDE Plasma 5.8, is the release of a desktop environment with long term support, updates will be a minimum of 18 months. Plasma 5.8 built using the platform of KDE Frameworks 5 and Qt 5 with the use of OpenGL/OpenGL ES for rendering.
When preparing new versions of Plasma 5.8.x the main efforts of the developers is aimed at improving stability, and increasing the functionality of the given secondary importance.
27 December was the fifth release of the KDE Plasma 5.8.5 LTS, which is made of about 50 different fixes and improvements translations.
If you are using Linux Mint 18 KDE environment with the Plasma 5.8 and KDE neon, the developers recommend to update to version Plasma 5.8.5.
Schedule for subsequent releases of KDE Plasma 5.8:
KDE Plasma 5.8.6 - 21 February;
KDE Plasma 5.8.7 - 23 May;
KDE Plasma 5.8.8 - 17 Oct;
And the latest release of KDE Plasma 5.8.9 will be released on 10 April 2018.
Installation KDE Plasma 5.8.5 LTS into Linux Mint:
You need to add the repository
sudo add-apt-repository ppa:kubuntu-ppa/backports-landing
sudo apt updatethen you must fully upgrade the system via terminal or Update manager
sudo apt full-upgradeGood Luck!!!
Linux Mint 18 - review, what's new?
Install Linux Kernel 4.1 on Linux Mint
Early update Linux Mint 17.1 "Rebecca" to Linux Mint 17.2 "Rafaela"
10 tips to avoid messing up your Linux Mint
Make a bootable flash drive from an ISO image on Linux Mint
How to reinstall Linux Mint and save all the settings and all files
Linux Mint 16 (MATE) after installation