+- wxLoadFileSelector() now allows the user to select existing files only.
+
+- Erase background events are now not generated at all when background style is
+ changed. See the updated wxWindow::SetBackgroundStyle() description in the
+ manual for more details.
+
+- wxTreeCtrl::GetSelection now asserts if the tree has the wxTR_MULTIPLE style.
+ Instead use GetSelections() for multiple items; or if you want only the
+ single item last touched, the new wxTreeCtrl::GetFocusedItem.
+
+- Custom log targets should be updated to override wxLog::DoLogRecord() method
+ instead of DoLog() or DoLogString() and must be updated if they call the base
+ class versions of these functions as this won't work any more; please see the
+ documentation of wxLog for more information.
+