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@@ -0,0 +1,44 @@
+* Refactored (un)registerListener methods to use overloaded methods instead
+  of the original single method with a bunch of ugly if statements within.
+* Refactored in order to remove all uses of 'supportService' calls which were
+  just poor design.
+* Flattened unnecessary namespace hierarchy.
+* Removed the #pragma macro for visibility.  SAL_DLLPUBLIC_EXPORT is used
+  instead.
+* Modified LU factorization routine to use another algorithm that seems more
+  robust than the one being replaced.
+
+2005-12-6	rev. 100
+* Improved LP model builder algorithm to remove decision variables with zero
+  cost and zero constraint column.
+* Refactored LpModelBuilderImpl class to use fewer member variables.
+* Fixed over-reduction of column size in the two phase simplex routine by
+  allowing basic variable(s) to have zero value (a.k.a. degeneracy).
+
+2005-11-22	rev. 90
+* Implemented more efficient matrix inversion algorithm by way of LU 
+  factorization.  This should totally eliminate the "freeze" issue present 
+  in the current Revised Simplex implementation.  The previous fix was not
+  effective in all cases.
+* Fixed bug in loading a model from document (it did not clear constraints 
+  before appending new ones).
+* Implemented reset function.
+
+2005-11-6	rev. 86
+* Added support for loading and saving a model with a current document.
+* Significant performance improvement on inverse matrix calculation for 
+  sparse matrix.  This should speed up many linear model scenarios where it
+  previously caused a "freeze".
+
+2005-10-30	rev. 81
+* Support for defining multiple constraints from cell ranges.
+* Removed Python prototype code (internal).
+* Reorganized file hierarchy structure (internal).
+* Ported Quasi-Newton non-linear algorithm (BFGS) from its original Python 
+  code.  But this algorithm cannot be invoked from the UI yet (internal).
+
+2005-9-24	rev. 71
+* Completed implementation of Revised Simplex algorithm for solving a 
+  constrained linear model.
+
+
