GitLab

* lisp/epg-config.el (epg-required-version-p): New function (bug#37025).

* lisp/gnus/mml-sec.el (mml-secure-epg-sign):
* lisp/epg.el (epg-start-sign):
(epg-start-encrypt): Use it to only use --sender when the gpg
binary supports it.