Re: are expl3 and l3kernel packages broken?

On 30/03/2016 23:59, Žarko wrote:
> Hi,
> today I upgrade my MikTeX (64-bit) installation. Trying to compile one 
> TikZ picture in coding, I receive error:
> 
> - Support package l3 kernel too old.
> 
> but
> I have installed its last version (from 2026/03/29). In the the same 
> time the xparse.sty was opened, where I see, that in it generate this 
> message
> 
> (RequirePackage{expl}[2016/03/28].
> \@ifpackagelater{expl3}{2016/03/28}
>      {} ...
> 
> However in packed manager I can not find expl3 package at all.
> 
> Since by this error my (urgent) workis halted, I kindly ask for help to 
> overcome this error.
> 
> Regards, Zarko

As has been detailed in various places, there was a 'passing issue' with
an upload to CTAN. That has already been addressed but it may take a
little while for MiKTeX to be updated (CTAN needs 24 h for installation
around the world, then code has to be added to distros). The usual
advice is never to update a working system if you have *urgent* stuff to
do. If you need a fix before Christian has added the code to MiKTeX, you
can get the burning edge from https://github.com/latex3/latex3 and do a
manual install.

Joseph

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