Amzi!News 
                              May 2001


Contents
--------


   [1] Amzi! Prolog + Logic Server 6.1.30 Beta Test Release
   [2] Amzi! Prolog + Logic Server 5.0.23 Production Release
   [3] KnowledgeWright 4.1.17 Beta Test Release



[1] Amzi! Prolog + Logic Server 6.1.30 Beta Test Release
-------------------------------------------------------------- 


A new Amzi! Prolog + Logic Server 6.1.30 beta release for Windows is now
available for download.


Compared to release 5.0, the first 6.1 release turned out to be many times
faster for some applications and many times slower for others.  The new
release keeps the faster ones fast, and makes the slower ones not nearly as
slow.  Most applications will run about the same speed on both releases.


The debugger is now working in 6.1.30


Numbers in Amzi! are now unified as a single \'real\' type.  This means there
are no machine restrictions on the number of digits on either side of the
decimal point.  Internally, the most efficient representation is always
used, but to the programmer, numbers appear to be mathematical rather than
computational.  See release notes for details.  (Scientific notation is
still available for those wishing to use floating point calculations.)


There is a new sample, pi.pro, that computes pi to an arbirary numbers of
decimal points.  This demonstrates some of the features of the new real
numbers.


There is a new sample, macro_test.pro, that shows the various things you
can do with the new macro facility in Amzi!.


There are other notes and minor upgrades as noted in the release notes with
the distribution, in the documentation.


Still missing from this release are: updated documentation, memory recovery
of string and other such objects, and indexing for the dynamic database.


NOTE - The internal format of .plm and .xpl files has changed slightly,
requiring recompilation and relinking of all programs with the new release.


Please download the software and work with it and let us know what you
think and certainly report any bugs.  Please use the support forum on
www.amzi.com whenever possible for bugs and other issues.



[2] Amzi! Prolog + Logic Server 5.0.24 Production Release
-------------------------------------------------------------- 


A maintenance release of 5.0 is available as well.  It fixes a memory leak
problem in applications that affects applications that open and close
multiple Logic Servers in a single process. And it fixes multithreaded Java programs with extended predicates



[3] KnowledgeWright 4.1.16 Beta Test Release
-------------------------------------------------------------- 


KnowledgeWright is moving along with numerous bug fixes and enhancements.
Notably a Linux version is now available, and it is possible to compile knowledgebases. There are full source code runtime examples for Java, Delphi and Visual Basic. A variety of bugs related to moving and renaming objects and folders have been repaired as well as a problem reading text objects from files.


If you want to beta test either the Support or Sales jigs, please contact us on www.amzi.com.


As always all beta feedback is welcomed.



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