Still using the KDE 4.14 desktop environment, and still based on Canonical’s long-term supported Ubuntu 14.04 LTS (Trusty Tahr) operating system, Linux Mint 17.3 “Rosa” KDE Edition is here to improved some of the built-in Mint apps, as well as to update various applications and core components and to fix bugs reported by users since Linux Mint 17.2 “Rafaela” KDE Edition.