Shortly thereafter, it became included as part of the base X Window System distribution, beginning with X10R3.

Initially, it was distributed alongside two other window managers (xwm and xnwm).

Uwm has never been maintained since, although it has been patched for use in modern UNIX-like operating systems through the pkgsrc package manager.

Uwm does not provide ICCCM compatibility or multiple screen support.

Descendants of uwm include awm and Tekwm (the Tektronix Window Manager),[4] which also are currently not maintained.