Read :

RPM are available in my repository for fedora 14 to 17 and Enterprise Linux 6 (RHEL, CentOS, ...)

As always :

yum --enablerepo=remi install mysql-workbench

Of course, it was build with mysql-5.5.27.

This build use (again) the system mysql-connector-c++.

This new version requires the mysql-utilities package which contains some interesting commands and pyodbc for the new migration wizard. However, the version in fedora repository is quite old and may cause some issues (see Bug #847440).

Update in the official repository should be pushed soon.