OS/2 2.0 pre-releases
I hate posting incomplete or damaged dumps, but for the time being I have posted a damaged dump of OS/2 2.0 S.E. Version 2.0 Level 6H.177.
The 6.177 Pre-release, also known as the "Limited Availability" release, was created as an end-of-year release to fulfill promises for a 1991 OS/2 2.0 "release". Notice that the labels do not indicate it is a pre-release. IBM actually provided a level of official support for this release.
https://winworldpc.com/download/4ba8ad99-6ea8-11e8-a48f-fa163e9022f0
Depending how you look at it, it could have been considered an “RTM release”. Historically significant, for sure. All put together very shortly after the IBM/Microsoft split.
That was the second release with the new OS/2 workplace shell. The first beta release with the workplace shell 6.167, is already posted.
https://winworldpc.com/download/9e51e128-66ae-11e8-a48f-fa163e9022f0
There is a truckload more information about these on the os/2 museum site:
http://www.os2museum.com/wp/os2-2-0-at-25/
http://www.os2museum.com/wp/os2-2-0-xmas-91-edition/os2-6-177-winos2/