Came here to find this as well. Guess I'll have to start scripting some new stuff here.Since a recent release the 'build versions_json' doesn't work anymore it seems to have been completely removed. I can't find anything regarding this in the recent releases, why did this get removed and would it be possible to regain it's functionality?
We run version 1.648 and you can test it by running "/usr/local/directadmin/custombuild/build versions_json"