Hi, I just upgraded org to 9.4.4 and org-version is returning an empty string when called unineractively. More precisely I started emacs with : emacs -Q -l minimal-org.el Contents of minimal-org.el : ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;; Minimal setup to load latest `org-mode'. ;; Activate debugging. (setq debug-on-error t debug-on-signal nil debug-on-quit nil) ;; Add latest Org mode to load path. (add-to-list 'load-path (expand-file-name "/home/me/.emacs.d/elpa/org-9.4.4/")) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Then did : M-x org-version Result : "Org mode version ( @ /home/me/.emacs.d/elpa/org-9.4.4/)" But when evaluated non-interactively : (org-version) Results : "" In my regular set-up, this breaks version checks used in other packages : (version< (org-version) "9.0") for example is called. This gives you the following backtrace : Debugger entered--Lisp error: (error "Invalid version syntax: ‘’ (must start with a number)") signal(error ("Invalid version syntax: ‘’ (must start with a number)")) error("Invalid version syntax: `%s' (must start with a number)" "") version-to-list("") version<("" "9.0") [...] Thanks for your help