Hmm.
The latest update was only a language translation patch that didn't affect any code.
The previous patch a year ago was the same.
So the last time any active code was changed was in March 2018.
%changelog
* Sat Dec 07 2019 SME Translation Server <translations@contribs.org> 1.6-15.sme
- apply locale 2019-12-07 patch
* Fri Dec 14 2018 John Crisp <jcrsip@safeandsoundit.co.uk> 1.6.14.sme
- apply locale 2018-12-14 patch
* Sun Mar 11 2018 Jean-Philipe Pialasse <tests@pialasse.com> 1.6-13.sme
- fix no spamcheck anymore for fetchmail [SME: 10290]
* Sat Dec 02 2017 SME Translation Server <translations@contribs.org> 1.6-12.sme
- apply locale 2017-12-02 patch
Hey ho - if you are working then fine!!