**Page on which the error exists** [APLVersion](https://docs.dyalog.com/20.0/object-reference/properties/aplversion/) **Version of the documentation in which you are reporting the error** 2026-05-06 v20.0:662a331439 **Describe the error** Remove Motif as a possible value for Version Type. **Additional Information** [Motif](https://en.wikipedia.org/wiki/Motif_Window_Manager) is an Xwindows based window manager.
Page on which the error exists
APLVersion
Version of the documentation in which you are reporting the error
2026-05-06 v20.0:662a331439
Describe the error
Remove Motif as a possible value for Version Type.
Additional Information
Motif is an Xwindows based window manager.