Replication introduces a new problem when upgrading to Access 2000 because generally not all users will upgrade at exactly the same time. Each replica in a replica set must be individually upgraded. When upgrading, all Microsoft Access objects stored in the Design Master are made replicable. Local Microsoft Access objects stored in each replica, except those in the Design Master, will be lost unless they are first imported into the Design Master before upgrading. Local tables and queries remain local in all replicas of the replica set.