2
This Hack will go into the core @ version 2.1
It has been included since version 2.0.4 but is commented out in the source code.
This hack stores the password as an MD5 hash on the client, but this is vulnerable to dictionary attacks, and simple copying to another computer.
This hack is a potential security hole, don't enable it lightly.
You can read more about it here:
http://wiki.xoops.org/wakka.php?wakka=XoopsAutoLoginHack