https://bugzilla.redhat.com/show_bug.cgi?id=1676544
--- Comment #2 from Tom Hughes tom@compton.nu --- Version is not current - this is an unretire and I realise going to 4.x might be an issue (though it looks like the main thing it does is add two new methods) but the latest 3.x at least might be a good idea?
Also it has two run time dependencies (map-stream and pause-stream) that are not available, presumably because they have also been retired.