The full tarballs for 1.8.5p0 are pennmush-1.8.5p0.tar.gz and
pennmush-1.8.5p0.tar.bz2.  The latter was compressed with pbzip2, a
parallel bzip2 implementation that can take advantage of multiple
CPUs/cores to speed up decompression. The file is compatible with
plain bzip2 as well. If you have pbzip2, decompress the tar file with
'pbzip2 -d FILENAME.tar.bz2', and extract it with 'tar xf
FILENAME.tar'. Otherwise, use 'tar xjf FILENAME.tar.bz2' to use bzip2.

The destination directory of the tarballs has changed: Instead of
unpacking into pennmush/, files go into pennmush-1.8.5p0/ so they do
not clobber an existing source tree.

1.8.4p8-1.8.5-patch is the patchfile to apply to existing 1.8.4p8 source
trees.

Also please note that the old 'patch -p1' invocation has changed to
'patch -p0'.

You can track PennMUSH via subversion, too:

svn checkout http://pennmush.googlecode.com/svn/tags/185p0

You can also track up-to-the-minute fixes by checking out
http://pennmush.googlecode.com/svn/trunk and doing regular svn
updates..

SHA1 checksums for the various files are in 1.8.5p0.checksums