KCalc user manual doesn't keep up with new version

Hello there! Today I go up, logged in for dusting my Linux desktop, and suddenly I found KCalc suddenly supports complex numbers, as (nicely) seemless as GNOME’s calculator!


No photoshopping, not a dream. Just looks unreal. To make sure what’s going on, I tried to find some release notes, but didn’t found. And to my surprise, the user manual is still for older versions, without complex number contents! Is it because the devs forgot the manual, or this version is new?