Yes, we’re talking about KDE Plasma 5.9.2, the second point release to the latest KDE Plasma 5.9 desktop, which launched just two weeks ago for various GNU/Linux distributions, including KDE Neon and Arch Linux. Because of the new, fast release cycle, you see this new version just one week after the first update, namely KDE Plasma 5.9.1. As for the changes implemented by KDE Plasma 5.9.2, according to the full changelog, it would appear that a total of xx bugs have been fixed across various components like Breeze, Oxygen, Plasma Discover, Plasma Addons, Plasma Desktop, Plasma Workspace, KScreen, Plasma NetworkManager (plasma-nm), KSSHAskPass, KWin, and SDDM KCM.