Nicolas Goaziou writes: > `line-number-display-width’ is Emacs 26+. So I guess it is unfortunately > not acceptable on main branch. Ooops, thanks for picking that up Nicolas. I see we actually have ┌──── │ (if (fboundp 'line-number-display-width) │ (defalias 'org-line-number-display-width 'line-number-display-width) │ (defun org-line-number-display-width (&rest _) 0)) └──── in org-compat.el, but I think that fallback definition could be improved — even just `(or display-line-numbers-width 0)' would be better. All the best, Timothy