ctan-upload@cl.cam.ac.uk wrote (in its inimitable way):
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The following information was provided by the package's contributor.
Name of contribution: expl3 Author's name: Morten Høgholm Location on CTAN: macros/contrib/expl3 Summary description: expl3 update License type: lppl
Announcement text given by the package's contributor:
This is a snapshot of the svn repository as of 2008/08/03.
from the readme file:
The files of the expl3 bundle provide a low-level API for TeX programmers with special syntax conventions, completely separating it from document level syntax. Hence, the commands provided are not intended for use at the document level nor for use in describing design layouts in document class files.
This API provides the foundation on which the LaTeX3 kernel and other advanced extensions are built. Special care has been taken so that they can be used within a LaTeX2e context as regular packages.
users should review the rest of the (extensive) readme file for further details.
note that the package's directory has moved location on ctan.
Users may view the package catalogue entry at http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/expl3.html or they may browse the package directory at http://www.tex.ac.uk/tex-archive/macros/contrib/expl3
thanks for the upload; i have updated the catalogue and it should by now be visible at most mirror sites.
Robin Fairbairns
For the CTAN team