Out of date security docs

This seems pretty out-of-date, since we seem to have had a 'CREATE GROUP' command
for as long as I can remember -- are there any more accurate docs out there?
How would I go about updating them?

http://www.postgresql.org/users-lounge/docs/7.0/postgres/security17760.htm

/***/
Currently, there is no easy interface to set up user groups. You have to
explicitly insert/update the pg_group table. For example:

jolly=> insert into pg_group (groname, grosysid, grolist)
jolly=>     values ('posthackers', '1234', '{5443, 8261}');
INSERT 548224
jolly=> grant insert on foo to group posthackers;
CHANGE
jolly=>
/***/

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Adam Haberlach            |
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