Mac OS 8.1a4

Mac OS 8.1a4 is an alpha build of Mac OS 8.1. It was uploaded to BetaArchive FTP on 19 February 2011. The installation did not update the system folder, but placed the updated files separately called Bride, probably because the codename Bride of Buster. The name of the button Special was changed to Sumptuous probably as an Easter egg.