version : release date : comments
---------------------------------
 v0.1      May 1957      infant state/Assembly
 v1.0      Jan 1964      proto-stage/COBOL
 v2.0      Jun 1975      H.S./BASIC
 v3.0      Jun 1979      B.S./APL
 v3.1      Apr 1980      PDP-11 (adventure)
 v3.2      Oct 1982      TOPS-20 (chase)
 v4.0      Sep 1984      Ph.D./FORTRAN
 v4.1      Oct 1984      VMS
 v5.0      Dec 1989      NASA/C++
 v5.1      Dec 1991      Sun OS2/Unix
 v5.2      Dec 1996      Prof
 v6.0      May 1999      Python
 v6.1      May 2001      Linux
 v6.2      Aug 2004      transfered to XML format
 v6.3      Dec 2009      network programming (urllib)
 v7.0      Jan 2015      resurrection 
 v7.1      Feb 2015      cybernetic organism (94% human)