We have many bugs for current remmina versions in stable Fedora branches like https://bugzilla.redhat.com/show_bug.cgi?id=1262525, https://bugzilla.redhat.com/show_bug.cgi?id=1292534. Most of them fixed upstream. Long time we was stuck with old freerdp library (look maillist for details). Remmina developers doing best work but can't support many legacy versions and backport fixes for several versions. For Ubuntu long time used PPA repository with fresh versions of remmina. Eventually we go forward and Fedora 24+ should have fresh versions of remmina. Unfortunately we can't break official Fedora update policy and made major update in stable branches. Until Fedora 24 arrive I will try provide fresh versions here!
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/hubbitus/remmina-next/