Hello
> * Fixltx2e
>
> This packages is depreciated with TL2015 cf. LaTeX News 22. We can
> use \RequirePackage[current]{latexrelease} but there's no point in
> that.... AFAIK latexrelease only useful for backwards compatibility.
Leaving this out probably doesn't break texing with older
texlive versions.
Please try to keep export compatible to older versions. I have a
couple of computers where I can use new versions of org-mode (and an
appropriate version of emacs), where it is not feasible to install a
newer version of texlive.
Best regards
Robert