+- wxTaskBarIcon objects must now be destroyed before the application can exit.
+ Previously, the application terminated if there were no top level windows;
+ now it terminates if there are no top level windows or taskbar icons left.
+- wxZlibInputStream is not by default compatible with the output of the
+ 2.4.x version of wxZlibOutputStream. However, there is a compatibilty mode,
+ switched on by passing wxZLIB_24COMPATIBLE to the constructor.
+- when WXWIN_COMPATIBILITY_2_4 == 0 wxHashTable uses a new implementation
+ not using wxList keyed interface (the same used when wxUSE_STL == 1),
+ the only incompatibility being that Next() returns a wxHashTable::Node*
+ instead of a wxNode*.
+- non-const wxDC methods GetBackground(), GetBrush(), GetFont() and GetPen()
+ as well as wxWindow methods GetFont() and GetCursor() don't exist any more,
+ please fix your code -- it never worked correctly anyhow if you modified the
+ objects returned by these methods so you should simply switch to using const
+ methods.
+- EVT_XXX macros are now type-safe; code that uses wrong type for event
+ handler's argument will no longer compile.
+- Identical functionality of wxFileDialog::ParseWildcard,
+ wxGenericDirCtrl::ParseFilter, Motif and MSW parsing native dialogs
+ is now accessible in ::wxParseCommonDialogsFilter
+- wxNotebookSizer and wxBookCtrlSizer are now deprecated -- the are no longer
+ needed, you can treat wxNotebook as any other control and put it directly
+ into the sizer that was wxNotebookSizer's parent sizer in old code.
+