# Upgrading Berkeley DB 3.0.X applications to Berkeley DB 3.1

1. Release 3.1: introduction
2. Release 3.1: DBENV->open, DBENV->remove
3. Release 3.1: DBENV->set_tx_recover
4. Release 3.1: DBENV->set_feedback, DB->set_feedback
5. Release 3.1: DBENV->set_paniccall, DB->set_paniccall
6. Release 3.1: DB->put
7. Release 3.1: identical duplicate data items
8. Release 3.1: DB->stat
9. Release 3.1: DB_SYSTEM_MEM
10. Release 3.1: log_register
11. Release 3.1: memp_register
12. Release 3.1: txn_checkpoint
13. Release 3.1: environment configuration
14. Release 3.1: Tcl API
15. Release 3.1: DB_TMP_DIR
16. Release 3.1: log file pre-allocation
17. Release 3.1: upgrade requirements

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