I created a bug report here : https://bugs.kde.org/show_bug.cgi?id=506175

This update broke my plasmatheme and it has a weird gap on the top when tile window side by side, it also broke “kde rounded corner” desktop effect. PS: the new floating applets are nice, but hard to distinguish between it and app background when using any themes that isn’t grey or white, they really need to implement border around the panel and applets.