Samba 4.2.0 released

Note that it doesn't allow you to trust a forest hosted by Samba AD DC because Samba AD DC doesn't support cross-forest trust. So yes, you can have Samba file server as a member of FreeIPA realm in Fedora 21 and RHEL 7.1 but you still are not able to run AD part of the infrastructure on Samba AD DC and trust FreeIPA at the same time.