Plasma 5.18.5 was announced (and build for KaOS) last Tuesday, but it was build on new Frameworks, so had to wait to move until Frameworks 5.70.0 was announced, which happened today:
https://www.kde.org/announcements/kde-frameworks-5.70.0.php
https://kde.org/announcements/plasma-5.18.5

In all over 300 packages just moved, including security fixes for Firefox (76.0.1), and major updates to cfitsio and poppler, which required a large rebuild.
Might be interesting to note that Inkscape 1.0 just moved too, now gtk3 based and needing some new depends.