As far as I know there are no special requirements for 0.29.x that prevent it from being built for F23.

I've emailed the package maintainer with my request.

On Thu, Mar 3, 2016 at 3:13 PM, Alexander Ploumistos <alex.ploumistos@gmail.com> wrote:
On Thu, Mar 3, 2016 at 11:59 PM, linux guy <linuxguy123@gmail.com> wrote:
> I'm not sure this is the right venue to ask, but... could someone build the
> latest version of Rygel and put it in the repos ?   Currently the repos have
> 0.28.2-1.   I think the latest available from git is 0.29.2.

There are several 0.29.x rygel builds:
http://koji.fedoraproject.org/koji/packageinfo?packageID=8589

Judging by the version numbers, perhaps fedora 23 won't be getting the
0.29 branch.

You can also look up information on packages and packagers at the PkgDB:
https://admin.fedoraproject.org/pkgdb/package/rpms/rygel/
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