C++: Change note.

Author: geoffw0

change-notes/1.24/analysis-cpp.md

@@ -53,3 +53,4 @@ The following changes in version 1.24 affect C/C++ analysis in all applications.
   * The library now models data flow through formatting functions such as `sprintf`.
 * The security pack taint tracking library (`semmle.code.cpp.security.TaintTracking`) uses a new intermediate representation. This provides a more precise analysis of pointers to stack variables and flow through parameters, improving the results of many security queries.
 * The global value numbering library (`semmle.code.cpp.valuenumbering.GlobalValueNumbering`) uses a new intermediate representation to provide a more precise analysis of heap allocated memory and pointers to stack variables.
+* `freeCall` in `semmle.code.cpp.commons.Alloc` has been deprecated. The`Allocation` and `Deallocation` models in `semmle.code.cpp.models.interfaces` should be used instead.