Seminar example document not expected to work with updated TeX Live

[Scott Kostyshak]

On Fri, Oct 30, 2020 at 09:56:40AM +0100, Enrico Forestieri wrote:
> On Thu, Oct 29, 2020 at 10:54:39AM -0400, Scott Kostyshak wrote:
> > Our seminar example fails with an updated TeX Live 2020 system. The
> > maintainer states the following:
> > 
> >   it is a problem with the new hook management of the current latex.ltx
> >   seminar is a quite old package and there is no reason to use it with a
> >   new LaTeX format. It won't be fixed, so the usual way is to use the
> >   package latexrealease to get the old hook management.
> > 
> > The workaround is to add \RequirePackage[2020-02-02]{latexrelease} as
> > the first line of the .tex file.
> > 
> > What should we do regarding the example file for LyX? My opinion is that
> > we should still ship it since there are many TeX systems that are not
> > updated and even for updated systems the workaround is easy.
> > 
> > Should we just write a LyX note inside the .lyx file that if they get an
> > error they should export to .tex and put
> > \RequirePackage[2020-02-02]{latexrelease} as the first line?
> 
> It would be much better inserting that line at export time. For example,
> see 42785e62 and 7aad7870 that deal with similar issues.

Agreed. However, I don't know if I will have time to look into that anytime soon. Also, it seems we would have to use LaTeX code to condition on the LaTeX version; i.e., would the line \RequirePackage[2020-02-02]{latexrelease} code give an error on older TeX installations?

Scott
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