What the Installation Must Do

Programs and scripts that extend the schema should apply updates in this order:

1. Add new attributes
2. Add new classes
3. Add attributes to classes. Any new attribute referenced in this step must be referred to by its OID because their names will not be present in the schema cache at this point.
4. Trigger a cache reload. This is not necessary if the extensions will not be used immediately; the extensions will appear in the schema cache in approximately 5 minutes (dependent on system load). For information on the schema cache and how to trigger a cache reload, see Updating the Schema Cache.