BOUML 是一个开源的UML 2 建模工具，可生成包括 C++/Java/Idl/PHP/Python 等代码，支持操作系统包括： Unix/Linux/Solaris, MacOS X 和 Windows. 该工具运行速度快，无需太多内存。
1. The message written to signal a message can't be added in a sequence diagram contained incorrect characters; this has been fixed.
2. This release adds lost/found messages in the... sequence diagram.
3. It adds an interface icon using a simple circle, and extends the drawing mode with it for classes in a class diagram, instances in a sequence diagram, and actors in a use case diagram.
4. To not change the already existing diagrams, when you open an old diagram showing a classes stereotyped interface or instances of a classes stereotyped interface, their drawing mode is forced to class when it values natural (even indirectly)