How to update user database from 3.1 to 3.2

This page is relevant only for such freeciv server admins who have player authentication enabled, and wish to keep on using user database created by an earlier freeciv version with freeciv-3.2.
Existing tables on the user database have not changed, so there's no need to convert any data. Freeciv-3.2 just needs a new meta information table, named "fcdb_meta" by default, to be present. That table needs to have "capstr" and "gamecount" columns, and one row. The values on that row should be "+fcdb" for "capstr" and number of games played on "gamecount". It's safe to start gamecount from zero even when games have been played using that database by an earlier freeciv version.
Example sql to create the new table:
CREATE TABLE fcdb_meta (
capstr VARCHAR(256) default NULL,
gamecount INTEGER default '0'
);
INSERT INTO fcdb_meta VALUES ('+fcdb', 0);