Latest software take some time to be included in the official repos. Most stable distros have a unstable/testing repository where softwares are added before being included in stable repos for regular use. Enabling testing repos not only benefits the user by giving him a chance to use the latest software, but also benefits the developer as he gets to know bugs in the software. The bugs can be fixed before made available to regular use.
To enable this repo, grab the repo file from here and copy it to /etc/yum.repos.d directory. You need to have KDE desktop installed in Fedora. You can update packages to their latest version by the following command.
su -c "yum --enablerepo=kde-unstable upgrade <packages>
Note: using unstable repositories is highly discouraged for enterprise and production use.