Add back-reference to changes file

CHANGES.current

@@ -7,6 +7,15 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.0.0 (in progress)
 ===========================
 
+2019-02-18: jakecobb
+            [Python] #945 #1234 Elements in std::vector memory access fix.
+
+            Accessing an element in a std::vector obtains a reference to the element via an
+            iterator pointing to the element in the container. If the vector is garbage collected,
+            the SWIG wrapper containing the pointer to the element becomes invalid. The fix is
+            to obtain a back-reference to the container by the wrapper to the element in the Python
+            layer to prevent the garbage collector from destroying the underlying container.
+
 2019-02-17: wsfulton
             Fix typemap matching to expand template parameters when the name contains
             template parameters. In the %typemap below the type is T and the name is X<T>::make

Doc/Manual/CSharp.html

@@ -1828,7 +1828,7 @@ Consider the following C++ code:
 <pre>
 struct Wheel {
   int size;
-  Wheel(int sz) : size(sz) {}
+  Wheel(int sz = 0) : size(sz) {}
 };
 
 class Bike {

Doc/Manual/Java.html

@@ -8295,7 +8295,7 @@ Consider the following C++ code:
 <pre>
 struct Wheel {
   int size;
-  Wheel(int sz) : size(sz) {}
+  Wheel(int sz = 0) : size(sz) {}
 };
 
 class Bike {

Doc/Manual/Python.html

@@ -5452,7 +5452,7 @@ Consider the following C++ code:
 #include <iostream>
 struct Wheel {
   int size;
-  Wheel(int sz) : size(sz) {}
+  Wheel(int sz = 0) : size(sz) {}
   ~Wheel() { std::cout << "~Wheel" << std::endl; }
 };