A new Windows 1.0 pre-release build was found

And it's also an OEM release. Imagine that.

Tulip Computers (previously known as CompuData) shipped a pre-release version of Windows 1.0 from September 1985 with some of their machines, which is designated as 1.xx and/or 1.xy. You can read more about it in the BetaArchive topic.

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