TL2021: the seminar class and hence the prosper class broken

[Dr. Werner Fink]

On 2021/06/30 14:43:52 +0200, Herbert Voss wrote:
> Am 30.06.21 um 14:29 schrieb Dr. Werner Fink:
> >   ! Extra \endgroup.
> >   \document ->\endgroup
> >                         \the \before at document \begingroup \UseOneTimeHook {beg...
> >   l.12 \begin{document}
> > 
> > As it looks like seminar class isn't developed anymore
> 
> that's true ... However, try it with the version from today:
> https://ctan.org/tex-archive/macros/latex/contrib/seminar/latex

many thanks for this pointer.  I'd like to ask what about this
differences between seminar.bg2 used with TeXLive 2021 and the
version on CTAN ... also the new seminar.bg3 and the missed
tvz files on CTAN. What is the ratianl bebind these changes?

Werner

-- 
  "Having a smoking section in a restaurant is like having
          a peeing section in a swimming pool." -- Edward Burr
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