KDE Plasma 5.12 transitioned from it beta version of 5.11.95 to the official release in an openSUSE Tumbleweed snapshot earlier this week.
On the same day of the upstream release, Tumbleweed snapshot 20180206 brought the new desktop software to its thousands of rolling release users. Improved performance and several new features are available in Plasma 5.12 like Wayland-only Night Color feature that allows adjustments to the screen color temperature to reduce eye strain and the System Activity and System Monitor display per-process graphs for the CPU usage. The new KDE Store offers a wide selection of addons that are ready to be installed. Plasma 5.12 is the second long-term support (LTS) release from the Plasma 5 team and will be the version used in openSUSE’s traditional distribution openSUSE Leap 15, which is expected to be released this spring.
Also: OpenSUSE Tumbleweed Already Shipping KDE Plasma 5.12, Mesa 18.0