Herbert Voss mails to say:
I uploaded pstricks-baseNEW.tgz to the UK mirror.
Replace all files with the ones in the main directory /graphics/pstricks/base/
pstricks.tex -------- 2.28 2012-05-24 - added add@psCode, which uses pstVerb instead of pstverb - activate x@strokeopacity for psgrid - showgrid=top is now possible
read the file /base/doc/pst-news12.pdf for more informations about this update to the base part of PSTricks or read the other Changes files which lists all what's new in the other files.
thanks for the upload; i've installed the new version, and updated the catalogue repository.
the package is to be found at
http://mirror.ctan.org/graphics/pstricks/base/
and the catalogue entry at
http://mirror.ctan.org/help/Catalogue/entries/pstricks.html
files and catalogue entry will be up-to-date within 24 hours.
Robin Fairbairns
For the CTAN team