As you may know, SMPlayer is a front-end for MPlayer, having support for video, DVD and VCD playback, has some advanced features like support for MPlayer filters and keeps track of the settings of all the played files, resuming a closed movie from the moment it was closed.
The latest version available is SMPlayer 184.108.40.20642, which comes with changes.
For Fedora 22 and Fedora 21 systems, up to date SMPlayer packages are available via the RPMFusion repository. You just need to update the local repository index and install the smplayer package. Like this:
$ sudo yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
$ sudo yum update
$ sudo yum install smplayer
Optional, to remove smplayer, do:
$ sudo yum remove smplayer