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yap-6.3/Logtalk/UPGRADING
pmoura f26a3b6ca9 Logtalk 2.15.5 files.
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2003-12-30 13:33:51 +00:00

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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.15.5
Copyright (c) 1998-2003 Paulo Moura. All Rights Reserved.
=================================================================
Upgrading from Logtalk 1.x
==========================
Logtalk 2.x is not compatible with programs written for version 1.x.
However, you should be able to translate most programs to make them
run under this new version. Most of the examples provided with previous
versions have been rewritten to run under version 2.x. Use them as
translation examples.
Upgrading from a previous Logtalk 2.x version
=============================================
If your Logtalk programs depend on some of the example files, it is
advisable that you check your code against the new version before
throwing away the older release.
Logtalk source files will need to be recompiled because of the changes
done in the version 2.5.0 to improve message sending performance.
Logtalk version 2.7.0 provides the first cut of the Logtalk standard library.
Most examples have been rewritten to take advantage of the library.
Logtalk version 2.8.0 introduces a small change on the logtalk_compile/1-2
and logtalk_load/1-2 predicates that may imply updating your loader utility
files: the first argument is now always a list of entities even if we want
to compile or load a single entity.
Logtalk version 2.9.0 changes compiled code functors postfixes from "_sdcl"
and "_sdef" to "_idcl" and "_idef", impliying recompilation of all objects,
protocols, and categories.
Logtalk version 2.10.0 changes some of the semantics of object dynamic
predicates. See the release notes for a description of the changes.
Logtalk version 2.14.4 removes the definition of the depracated built-in
predicate logtalk_version/3 (use current_logtalk_flag/3 instead).
Logtalk version 2.14.5 changes compiled code in order to correct a bug
where sending messages such as true/0 to an unknown object will succeeded
instead of throwing the expected exception, impliying recompilation of all
objects, protocols, and categories.
Logtalk version 2.14.7 changes compiled code in order to optimize the
code generated by the compilation of dynamic predicate clauses.
Logtalk version 2.15.0 changes the "authors" key in the directive info/1 to
"author". All the XSLT, DTD, and XSD files have been update to conform to
this change. If you use the directive info/1 in your programs, you will need
to apply this change to take advantage of automatic generation of documenting
files.
Logtalk version 2.15.3 changes the format of the runtime entity tables,
impliying recompilation of all objects, protocols, and categories.