We replicated 8.4 to 9.3 using Slony 2.1, and we had both versions of
PostgreSQL in the cluster at the same time with no problems.  We
hadn't replicated 9.3 databases back to 8.4 though.

On Tue, Jul 22, 2014 at 11:53 AM, Dave Cramer <davecramer at gmail.com> wrote:
> Are there any known issues ?
>
> Dave Cramer
>
> _______________________________________________
> Slony1-general mailing list
> Slony1-general at lists.slony.info
> http://lists.slony.info/mailman/listinfo/slony1-general
>