Has any progress been
made in the past few years implementing modifiable
separators for captions under MKIV? This was raised as an
issue by (at least) Mojca Miklavec in December 2010 (
http://www.mail-archive.com/ntg-context%40ntg.nl/msg51542.html)
and by Andy Thomas 18 months later (
http://www.mail-archive.com/ntg-context%40ntg.nl/msg63937.html).
(Their issues with stopper have been resolved. In MKIV it is
numberstopper.)
Here is an MWE demonstrating the problem. It compiles
cleanly, but the separator remains the default period. With
MKII, it generates a figure with a hyphen and not a period.
\setupcaptions[separator=-]