Dear Paul,
Thanks for your inquiry. Glad to hear that you are using UCNEbase. We also appreciate that you worry about citing the correct version.
As far as I know, we never updated the data back-end of the server. Since we transferred the database to a new machine and a new institution, we also cannot infer the creation date of the data from the creation dates of the files on the ftp server. All we could say is these files have not been changed since 2023-03-16.
You might be interested to know that the UCNEbase website is now also available as a container from:
There, the current version is tagged 1.0.1. Further to your question, we plan to add a README file to the ftp site where we will identify the current release as "version 1.0.1 (March 2023)".
I hope this was helpful. Good luck with your analysis!
Philipp Bucher