OS/2 2.00 build 6.605

OS/2 2.00 build 6.605 is a beta build of OS/2 2.0 from September 1991. Michal Necasek, the author of the OS/2 Museum blog, wrote a post about this build in 2017 — when inquired about the disks, they stated that the build was not owned by them and that the owner had disallowed them from disclosing the disks' contents to the general public. The disk images were later uploaded to the Internet Archive on 20 April 2022. The reason for its out-of-sequence build number remains unknown.