In upgrading from 3.0.0 I did the automatic upgrade from 3.0.0 to 3.0.1, then to 3.0.2, and finally to 3.0.4. The upgrade went smoothly, but the admin log always shows I was upgrading to 3.0.4, which was not the case.

Clipped from Admin Log:
Mon May 18, 2009 4:06 pm Updated phpBB from version 3.0.2 to version 3.0.4
Mon May 18, 2009 3:53 pm Updated phpBB from version 3.0.1 to version 3.0.4
Mon May 18, 2009 3:11 pm Updated phpBB from version 3.0.0 to version 3.0.4

The database shows the right progression of upgrades, but the phpBB version always showed I was upgrading to 3.04.