CHANGES FROM PREVIOUS RELEASES
------------------------------

??/??/?? Release 2.1
~~~~~~~~~~~~~~~~~~~~	

This is a major release version. 
    
	- STklos (the object layer) is now written in C. It is more than 150
	  times faster than before and it uses less memory (~ 1/100)!!!!
	- Improvement of STklos 
	- STklos classes have been written for all the Tk library widgets
	- Composites widgets can be easily defined in STklos. Access to those
	  widgets is identical to C written one.
	- bindings can be now true lambda expression with their own
	  environment (rather than list which are evaluated in the global 
	  environment).
	- Hash tables have been added.	
	- Small constants are coded on a pointer rather than a cell
    	- Support for dynamic loading on SunOs (4 and 5). Dynamic loading
      	  uses shared objects (it should work also on OSF1)
	- Dump creates now smaller images.
	- Modification of configure and Makefiles to correct of a lot 
	  of installation problems.
	- Runs on Solaris 2.3
	- Bugs corrections 
	- Some modification to the error notifier
	- Support of dynamic loading of shared objects on Solaris 1 & 2 (it
	  should work also on OSF1).
	- ...

94/01/03 Release 2.0
~~~~~~~~~~~~~~~~~~~~

    STk 2.0 contains a completly rewritten Scheme interpreter. This new
    interpreter is
            - R4RS
            - faster than previous release (~ 3 or 4 times)
            - less bugged (I hope :-) )
            - implements integers (32 bits and bignum) and floats
            - cleaner with macros 
    
    This version contains also a prototype of a graphical inspector which
    permits to see/modify a variable value. For widgets variables it permits
    to modify interactively their behaviour. However, it doesn't yet contain
    a C rewritting of the object layer as it was planned. This will be done
    in a (probably the) next release.

93/09/02 Release 1.00 (first public release)
~~~~~~~~~~~~~~~~~~~~~
