kcm-ufw-0.4.3 states it is updatet to depend on a more recent ufw but doesnt change depend in its ebuild, as kcm-ufw-4.1 before: <ufw-0.31 ... possible maintainer edit mistake?
No, seemingly kcm-ufw-0.4.3 does not work using newer ufw-0.31.1
The dependency is a mistake on my part and will be corrected shortly. According to upstream[1] 0.4.3 works with the new UFW. 1. http://kde-apps.org/content/show.php?content=137789
Dependency fixed in CVS some time ago.