The changes to support 9.3 from incident 21852 are included in build 4.3.0Beta, which you can get from here: http://sourceforge.net/projects/postbooks/files/
*EDIT RC will be published soon, Beta is the current release, which does include PG 9.2+ support, but has a minor issue that was fixed in RC. I would wait for RC before testing --
That's great news, thanks for the update.
Is there is any more information on this? The only thing I have found so far have been a few reported incidents: