Support for Samba 3.6 in RHEL6: will it continue?

The official support for Samba 3.6 is ended by samba.org.
But the Samba 3.6 is the main version in RHEL6. Will it be supported by RH?

Samba4 in RHEL6 has "rc" suffix and is a bit buggy: I had conflict between nmbd and SELinux when creating socket file.
So I do not like to move to it. Another option is to move to SerNet's binaries. Possibly yes, but only like a last option.

So the question is important for me.