For those who have used earlier versions of ps2pk next differences may be
of interest (only major differences are mentioned):

Ps2pk 1.5 release (96-02)
-------------------------
1) recursive T1INPUTS path
2) PS resource databases
3) new checksum algorithm
4) automatic font generation with mtpk and pkfonts 
5) PK specials
6) reorganization of sources
7) improved makefiles

(See RELNOTES.15 for more info.)

Ps2pk 1.4 release (94-01)
-------------------------
1) Memory allocation made dynamically
   1.1 in computing runlengths (needed to build PK fonts)
   1.2 in scanning type1 fonts (to overcome `fixed' virtual memory)
2) Problem with handling Lucida font (negative widths) solved
3) Improved error handling in scanning AFM files
4) Provided hooks to handle non 32-bit platforms
5) Some cleanups
6) Improved Makefiles.

Ps2pk 1.3 release (92-09)
-------------------------
1) Official X11R5 patches included in type1 library.
2) The -a<AFMfile> option added to ps2pk.
3) Problem with rendering of Obique fonts solved.

Ps2pk 1.2 release (92-06)
-------------------------
1) Ps2pk now computes the same checksum as afm2tfm (dvips5.487 or
   higher). This means that you have to update your VF and TFM files
   with the new dvips5487lib files.
2) Bug fixes:
   - the MSDOS version now correctly reads PFB font files
   - a segmentation fault error removed (capri.pfa font)
   - an out of memory problem fixed (davysrib.pfa font)
3) Added Makefile for MSDOS/DJGPP (Delorie's GCC for 386 systems)

Ps2pk 1.1 release (92-04)
-------------------------
1) Ps2pk uses now the same encoding scheme as introduced by afm2tfm 7.0
   (dvips5485). But default (for all English/American writing TeX-friends)
   the program uses the same encoding as is in the AFM-file belonging to
   the type1 PostScript font (normally AdobeStandard). So the program does 
   not longer need re-encode to create a .cmi file containing the encoding 
   vector and the WX values. These are read directly from the AFM file.
   
   Typical usage for standard encoding:
      ps2pk -X329 Utopia-Regular rputr.329pk
   
   or with EC.enc encoding:
      ps2pk -eEC.enc -X329 Utopia-Regular rputr.329pk

2) I have added a -E<expansion> and -S<slant> option to ps2pk thanks to
   the patches I got from Lee Hetherington.

3) I have added a MakeTeXPK script so that dvips and xdvi can use it.

4) I have added manual pages and some documentation (README + INSTALLATION).

5) Some inconveniences for MSDOS users are removed.

Ps2pk 1.0 release (92-03)
-------------------------