Olaf Kummer writes:
I have uploaded to ftp.tex.ac.uk the file doublestroke.tar.gz which contains the updated version 1.111 of the doublestroke font for typesetting the mathematical symbols for natural numbers, real number etc.
This package replaces the files in /tex-archive/fonts/doublestroke.
In this version PostScript variants of the fonts were added, which were kindly provided by Marco Kuhlmann.
thanks for the upload; i've installed the files, as requested, to replace the old version.
Robin Fairbairns
For the CTAN team