I checked the thread, the latest actual update shared is 0.9.8.1.2Huh? I thought that everything all right... Very strange situation
The only thing shared that specifically says 0.9.8.1.3 is the torrent (and the xdelta patch above), so either the torrent uploader messed up somewhere, or whoever shared the file with them gave them the wrong file.
Either way, it certainly doesn't help that the changelog entry for 0.9.8.1.3 is missing from even the official archive.