I'm currently finishing slony support in pgadmin (code as of last week 
was 1.05 only), and need to catch version dependencies now. Could please 
somebody sum up which feature appeared in which version. Extracting this 
from the docs would be really time consuming/error prone; at present I 
got only 1.2 to test.

Currently I know of these differences:
storenode with third parameter (new in 1.1 or 1.2?)
ddlscript (1.1 or 1.2?)

FYI:
Creating/modifying objects in pgAdmin will be done trough ddlscript if 
available.

Finally: I found that droplisten is disabled (will always return -1), 
and even if I drop the sl_listen row it will be recreated. Auto-creating 
listens from paths is a fine thing for standard situations, but I wonder 
if this is a good thing in complicated replication topologies. In 
addition, pgAdmin will use a (never active) node as "administrative 
node" to store its path information to all nodes, and will never need 
listens. Hopefully, a node that never pulls the events from its 
providers won't happen to degrade the cluster somehow.

Regards,
Andreas