[Exim] debian exim and firebird

Hi

I have seen in the documentation, that there is new support for ibase. I
have two questions on this.

1. Will ibase support include firebird support? If possible, please link the
ibase support against the firebird client, since it can work against
firebird and interbase servers as well. I don't know for interbase client
libs.
2. When will ibase support be included in exim4-daemon-heavy (debian sarge)
?

Regards,
Steffen