+wxBase:
+
+- wxArray<T>::Remove(size_t) has been removed to fix compilation problems
+ under 64 bit architectures, please replace it with RemoveAt() in your
+ code.
+
+- wxObject::CopyObject() and Clone() methods were removed because they
+ simply don't make sense for all objects
+
+- wxEvent now has a pure virtual Clone() method which must be implemented
+ by all derived classes, if you have user-defined event classes please
+ add "wxEvent *Clone() const { return new MyEvent(*this); }" line to them
+
+All (GUI):
+
+- the event type constants are not constants any more but are dynamically
+ allocated during run-time which means that they can't be used as case labels
+ in the switch()es, you must rewrite them to use if()s instead
+
+ You may also define WXWIN_COMPATIBILITY_EVENT_TYPES to get the old behaviour
+ but this is strongly discouraged, please consider changing your codei
+ instead!
+
+- wxYES_NO is now wxYES | wxNO and the manifest values of both wxYES and wxNO
+ have changed (to fix some unfortunate clashes), please check your code to
+ ensure that no tests for wxYES or wxNO are broken: for example, the following
+ will *NOT* work any longer:
+
+ if ( flags & wxYES_NO )
+ ... do something ...
+ if ( flags & wxYES )
+ ... do something else ...
+
+- wxGLCanvas now derives directly from wxWindow, not wxScrolledWindow
+
+- wxGridCellAttrProvider class API changed, you will need to update your code
+ if you derived any classes from it
+