The latest beta complains and stops when I try to process a book that has
\setupdirections[bidi=global, method=one]
for several, scattered phrases in Arabic and Hebrew (which I do not read).

It works, however, when I set
method=two
or
method=three.

What is the difference between these methods and, am I right that the output will be the same if I switch to method two or three?

Alan