Thanks for this great plugin :)
We have as an additional requirement that the author needs to state which type of amendment has been made to the previous version. So I forked the plugin to add a select list with the options "Update", "Revision" and Correction. The exact meaning is given in our publication guidelines.
I just wonder if such a list is also of interest to your users. in which case I could make a pull request so I do not have to maintain a seperate version :)
We're running OPS version 3.3, but we plan to switch to OPS 3.5 when it is published. So I have to implement the changes to work with 3.5 in any case.
Just let me know.
Yours
Felix