==========================================================================
version 2.2a3
==========================================================================

- Should compile out-of-the-box for any GNU C + POSIX platform
  (e.g., Linux, Solaris x86).

==========================================================================
version 2.1b1
==========================================================================

- Added backends for MPI, Sparc (Solaris threads),
  Cray (Posix threads), and a new backend for PVM ("PVM2").

- Added work-stealing to the MPI and PVM backends
  (no stealing yet of nodes which use shared variables).

- Changed the Arc information dialog. It's much more
  user-friendly now.

- Added the option to view Arc annotations.

- Many small changes to the user-interface, including
  a variety of bug fixes.

- Aliases to container nodes added (but produced code
  won't compile if there is more than one... :( )

- Changed the executable name from "code2" to "code".



==========================================================================
patched version 2.1a2 (distributed to all users of 2.1a2)
==========================================================================

- For errors in the translation step, the "culprit" node is
  now displayed and its form is automatically opened.

- A bug caused by the PRINTER environment variable not being
  set has been fixed.

- A reference to the local filesystem was removed and a cursor
  bitmap (left_ptr) was added to the ui/bitmaps directory.



==========================================================================
version 2.1a2
==========================================================================


- Added one line to the code2 shell script -- the environment
  variable for the Tix library, necessary for execution outside
  of UTCS domain (that's why they call them "alpha" releases).

- The format of the code2 shell script has been modified
  so the CODEDIR environment variable will not have to be
  set by the user. The script itself must be modified (just
  one line) during installation.

- The size of new Container windows has been doubled.

- The annotation form for Computation nodes has been changed
  slightly, providing more space for the specification edit window.

- Fixed a slight positioning bug in arc drawing (off by one pixel).

- Fixed default specification of Name Sharing nodes.

- Modified error-handling during compilation -- now "culprit" nodes
  pop up when they contain errors.

- Added error-checking before file reads/writes.

- Changed the hotspot in the Information tool (the "i") so that
  it is in the dot.

