Pythia
 
  Version: 6.203 installed as current and is  in development
           6.155 last frozen release 4.4.0

  Not possible to run 6.203 with 4.4.0 or earlier or 6.155 with a release
  after 4.4.0 .

  Major new feature of 6.203, Les Houches Accord to inteface external 
  generators. These generators now accessed by call in PYINIT to UPINIT
  and in PYEVNT to UPEVNT. Hence PYUPIN and PYUPEV calls fail. 
  Accessed by setting frame to USER.
  Access to PYINT2 needed by Higgs Group and has been added with talk-tos
  in commonMenu.
  PYR is now using the CDF engine (Elena).

Problems
 
  Crashes: Probably caused by commons overwriting, difficult to get anything
  from debuggers. At best the traceback tells the line of failure,
  usually a bland bit of code, often only minimal traceback, afew system 
  calls .rying to compile the source causes the the crash to disappear
  or move somewhere else on a different event. 
  
  New interface: not yet tested, some problems are foreseen and a guinea pig
  is welcome !