Eric Hameleers has pushed his KDE 4.10.4 packages to Slackware 14.0 users on his KTown repository and as well as other mirror sites that mirrors his packages. This packages are intended for Slackware 14.0 users as -Current users will get the packages from Patrick himself as part of the future batch of update (hopefully soon).
KDE 4.10.4 brings bug fixes and translations updates only, so it's safe to upgrade to this version. This version focused on fixing Dolphin and PIM modules. Details can be seen on KDE's Bug Tracker.