BlueSky beta of 6.1 with the WindowMaker 0.61.0-1 package:

It works fine, but upon exiting you see this:

wmaker error: 2>/dev/null:could not stat menu: No such file
or directory
wmaker error: wmaker:could not stat menu: No such file or
directory
wmaker error: --output:could not stat menu: No such file or
directory
wmaker error: wmconfig:could not stat menu: No such file or
directory
wmaker error: |:could not stat menu: No such file or
directory
wmaker error: OPEN_MENU:could not stat menu:| wmconfig
--output wmaker 2>/dev/nu
ll: No such file or directory