A process somewhere within cambridge ctan writes (by rote):
The following information was provided by the package's contributor.
Name of contribution: xfor Author's name: Nicola Talbot Location on CTAN: macros/latex/contrib/xfor Summary description: A reimplimentation of the LaTeX for-loop macro. License type: lppl
Announcement text given by the package's contributor:
v1.04: rewrite of internals to improve loop efficiency (code provided by Morten Høgholm)
i have installed the new version; thanks for the upload.
Users may view the package catalogue entry at http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/xfor.html
which will be updated (very slightly) overnight tonight.
or they may browse the package directory at http://www.tex.ac.uk/tex-archive/macros/latex/contrib/xfor
Robin Fairbairns
For the CTAN team