Problem upgrading 8.0.0beta4 to 8.0.1

Hello all,

I recently tried to upgrade from postgresql8.0beta4 to 8.0.1.  When I
tried to start postmaster I got the following error:

FATAL:  database files are incompatible with server
DETAIL:  The database cluster was initialized with CATALOG_VERSION_NO
200410111, but the server was compiled with CATALOG_VERSION_NO 200411041.
HINT:  It looks like you need to initdb.

Does this mean I have to dump and reload to get up to 8.0.1?  The database
is 15G and I'd rather not have to go through a full dump.

-Zeki