Dave Page (who produces by far the most popular slony package for
windows) has told me that "Unless there's a security or a data
integrity issue, then the upgrade will be made available as part of
our next quarterly update cycle, towards the end of June." That was in
reference to Slony 2.0.3, but my guess is that he'll end up doing this
with 2.0.4.

-- 
Regards,
Peter Geoghegan