Compiz is a compositing window manager that enables users to enjoy clever desktop effects and transparency. Compiz is included in many distributions' default installs and in many others' repositories. At one time its future was in question with new major desktop environments planning to incorporate their own effects. When those effects failed to materialize as publicized, the popularity of Compiz continued to grow. But with newer systems and desktop enviroments, Compiz needed to be rewritten. So, after a long developmental period, Compiz 0.9.0 was released.