Berkeley DB Reference Guide: Release 4.6: upgrade requirements
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++

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

### Release 4.6: upgrade requirements

The log file format changed in the Berkeley DB 4.6 release.

The format of Hash database pages was changed in the Berkeley DB 4.6 release, and items are now stored in sorted order. The format changes are entirely backward-compatible, and no database upgrades are needed. However, upgrading existing databases can offer significant performance improvements. Note that databases created using the 4.1 release may not be usable with earlier Berkeley DB releases.

For further information on upgrading Berkeley DB installations, see Upgrading Berkeley DB installations.

Copyright (c) 1996,2007 Oracle. All rights reserved.