i posted some details and some new versions over here in this thread: RapidWeaver 8.2 Public Beta 1 (20697b) — UPDATED BUILD
i’ll try to finalize the release versions to the general public before the beta testing is done. at the time of this post RW 8.2 is in beta 3 – but beta 3 has some issues with plugins currently. i will probably wait until those are resolved before finalizing these changes.
however – if you’re using 8.2 at all, i think these beta versions of SiteMap and PlusKit should work fine. 
Isaiah