[horde] Question about upgrade from 3.0 to 3.1

[Torbjorn Grindhaug]

Hi.

I was wondering what data I loose if I don't run the
move_history_out_of_datatree.php script. Is it only information of
this kind: 'You replied to/forwared this message on...' ?
If I don't care about Horde 3.0-history of this kind, is it safe to
just ignore this script then?

The horde_datatree -table has about 100.000 entries in it, and after
reading about this history-moving on this list, I suspect this script
will take quite some time to execute.