You have downloaded the GTK+ port of the wxWidgets GUI library.
-It is required to use at least GTK+ 2.4 and some features are
+It is required to use at least GTK+ 2.6 and some features are
only available when using GTK+ 2.8 or higher. Note that if you
compile wxWidgets against GTK+ 2.8 your app will still work
-with older GTK+ version down to version 2.4 as wxWidgets
+with older GTK+ version down to version 2.6 as wxWidgets
tests for the presence of newer features at run-time and it
will fall back to a generic implementation if these features
are not present in the GTK+ version used.