Windows 1.0 Development Release 2

Windows 1.0 Development Release #2 was the second release in a series of Development Releases of Windows 1.0. This release would've been compiled sometime in June 1984, and could be related to the Middle Tandy 2000 build shown to have the timestamp of "June 1984" at the top. It is also further implied to be from the aforementioned month as DR1 was stated to be released to testers towards the end of May, and DR3 being released in July (according to DR4's release notes).