### Berkeley DB Reference Guide: Upgrading Berkeley DB Applications |

### Upgrading Berkeley DB 3.3.X applications to Berkeley DB 4.0

1. Release 4.0: introduction
2. Release 4.0: db_deadlock
3. Release 4.0: lock_XXX
4. Release 4.0: log_XXX
5. Release 4.0: memp_XXX
6. Release 4.0: txn_XXX
7. Release 4.0: db_env_set_XXX
8. Release 4.0: DB_ENV->set_server
9. Release 4.0: DB_ENV->set_lk_max
10. Release 4.0: DB_ENV->lock_id_free
11. Release 4.0: Java CLASSPATH environment variable
12. Release 4.0: C++ ostream objects
13. Release 4.0: application-specific recovery
14. Release 4.0: upgrade requirements

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