samba - Aug 2018 - Any public repo with 4.9.0rc2 ?

Hi,

I know it's still in RC status but I want to tryout 4.9's domain
rename feature on my test setup.

Is there any public repo with 4.9.0rc2 except Gentoo/Funtoo? Fedora
Rawhide seems included but it uses MIT Kerberos as far as I know.

* https://repology.org/metapackage/samba/versions

Regards.