. . . "db4o (database for objects) is an embeddable open source object database for Java and .NET developers. It is developed, commercially licensed and supported by Actian. In October 2014, Actian declined to continue to actively pursue and promote the commercial db4o product offering for new customers.db4o is written in Java and .NET and provides the respective APIs. It can run on any operating system that supports Java or .NET."@en . . . . . "8.0" .