I find it really useful to have the power to specify which components should NOT be reRendered. For example:
<rich:menuItem submitMode="ajax" reRender="tabbed_pane, !some_tab_content"/>
This will be extremely useful in case of components which have many children... and I want to render almost all of them ( but not all )
BTW, is there a way to achieve this with 3.1.4 ?