[luatex] Confirm change in TL 2016-pretest vs. TL 2015 behavior: dvilualatex fails because of pdfpageheight

[David Carlisle]

On 19 May 2016 at 00:04, Reinhard Kotucha <reinhard.kotucha at web.de> wrote:
> On 2016-05-18 at 15:08:28 +0930, Will Robertson wrote:
>
>  > It should be fine to have something like
>  >
>  >     \IfFileExists{luatex85.sty}{\usepackage{luatex85}}{}
>  >
>  > for the time being. This should catch 99.999% of users?
>
> Sure.
>
> Someone said on a mailing list said that package authors who support a
> beta version of LuaTeX should keep their stuff up-to-date.
>
> But this is not the only problem.  The main problem is that LuaTeX was
> compatible with pdfTeX in the past and that many people are using
> packages designed for pdfTeX.  I suppose that many packages don't work
> anymore.

It's not _that_ many (search for `\pdf[a-z]` in y0ur texlive tree, and
while not all are updated yet
most maintainers  have been contacted (or at least, efforts have been
made to contact them)

>
> Isn't it better to put some code derived from luatex85.sty into the
> format file which creates a warning message whenever a deprecated
> control sequence is used?
>
> Unfortunately there is not much time until TeX Live 2016 is released.
>

No, on balance I/we think it is better not to do that, see for example
discussion on texlive list

http://tug.org/pipermail/tex-live/2016-May/038443.html

David