See the Downloads page for some new scenarios, a playsheet with suggested game distances for 'larger' 25-30mm units, and the errata.
Thanks to the efforts of Osprey and my own constant re-reading, the errata are few and minor - at least the ones I've found so far. I'm sure purchasers will discover one or two more. Players with French armies should note the mistake on p.47. French artillery always takes a full move to limber/unlimber.