Am Thu, 18 Jun 2015 15:25:57 +0200
schrieb Rainer M Krug <Rainer@krugs.de>:

> In the spirit of reproducibility, I would at least suggest to
> introduce a function which inserts an argument
> 
> #+ORG_FILE_VERSION: TheActualOrgVersionProbablyWithGitHash
> 
> if it does not exist, and if it exist, updates it to the actual
> version?


Wouldn´t something like 

#+BEGIN_SRC emacs-lisp :exports results
(org-version)
#+END_SRC

do it, when needed?

Regards
Detlef