As Thom has said, we don't consider HARP Fantasy to be a full second edition. We think of the Mjolnir 160-page original as 1.0, the Mjolnir 192-page as 1.2 and HARP Fantasy as HARP 1.5.
I've not reopened (in the editing/layout sense) the HARP core rulebook to make any further corrections because not enough have been found and/or not enough time has passed to declare that "reopening" makes sense. At any rate, when it does make sense, anyone who buys a pdf version will simply be able to download the updated pdf for free through OBS. I realise that isn't possible for print versions, which is why we won't update the print masters until we are really sure there isn't a Columbo-like one last significant error.
Best wishes,
Nicholas