Added [dbo] schema to "CREATE TABLE [GenericAttribute]" statement in the upgrade script in case your database user does not have [dbo] as a default schema. Please see changeset 7fc712373090
P.S. If somebody else experience this issue and downloaded the upgrade script before July 4th, then simply re-download the upgrade script. In this case you won't have to change you the default schema of your your SQL Server user to [dbo]