I executed the following command in shell:sudo yum list kernel-coreLoaded plugins: langpacksInstalled Packageskernel-core.x86_64         3.17.4-301.fc21          @koji-override-0/$releaseverkernel-core.x86_64         3.18.5-201.fc21          @updates         The kernel-core.x86_64 part of version 3.17 is underlined.Could anyone help me understand what this means? I have already updated all packages using sudo yum update and am wondering why I still have the earlier version of kernel-core.    
Interpretation of yum list results in fedora 21
fedora;yum