db4o is an object database available for Java and for .NET, including CompactFramework and Mono. Features include ACID transactions, automatic class schema recognition, query-by-example, S.O.D.A. object querying API, callback methods, memory files, cascade-on-delete, multi-threaded access, and Java Webstart and servlet support. License: GNU General Public License (GPL) Changes:
This release comes with an optimized implementation of LINQ (Language INtegrated Queries). Solution files for Visual Studio 2008 are provided along with the sources. The latest work on Transparent Activation (TA) and Transparent Persistence (TP) is included. Db4oTool was improved to make optimization for Native Queries and for TA/TP easier. Optimizations can also be called with msbuild.

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