dovecot - Jul 2009 - Dovecot-sieve version compatability

I'm thinking of upgrading my dovecot version to 1.2 so that I can use
the Dovecot sieve plugin instead of the CMU Sieve plugin. My RPM repo
for dovecot is ATrpms so I could get dovecot-1.2.0-0_95.el5.i386.rpm
from the bleeding ATrpms repo. Would this be compatible with
dovecot-sieve-1.1.6-9.el5.i386.rpm which is in the stable repo, or
would I need to find a later dovecot-sieve version somewhere?

Regards,
Phill