This is a summary of the main changes in J Release 2 since the
initial release.

2.01, 1994 9 1    
==============
Initial release


2.03, 1994 9 21
===============
Bug fixes, plus some speed ups.

This is the version used in J FreeWare.


2.04, 1994 11 28
================
Many speed ups.

New facilities:

* Extensions to the 3!:x foreign conjunctions - allow boxed arrays to be
  easily written to file, and allow for easy conversions between data in
  various formats. 

* A component filing system and key filing system.

New Windows-specific facilities:

* DLL and Memory Management facilities - permit J to call DLL's.

* Visual Basic API - allows the VB programmer to call J routines from
  VB, and to switch between VB and J while developing applications.


2.05, 1995 2 26
===============
Many speed ups.

New language facilities:

* a: (ace) is defined to be  <$0 

* set/query for print precision, host system and version number

New Windows-specific facilities:

* a Form Editor and improved message loop handler - simplify creation of GUI
  forms. You can create a form and its handlers, test and run the form
  entirely within the Form Editor.

* the full text of the Introduction and Dictionary, and the User Manual,
  is included Windows Help format.

* several new examples and utility scripts.


2.06, 1995 5 30
===============
Many speed ups.

First full J system for the Macintosh.

New language facilities:

  4 : n               dyad-only explicit defn
  13!:8               signal error
  ]:                  identity adverb
  gerund D. n         specify derivative
  H.                  Hypergeometric series
  p.                  the monad computes polynomial roots
  p:                  the n-th prime
  q:                  prime factorization
  gerund t.           specify Taylor coefficients
  t:                  weighted Taylor coefficients