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Did you know...

...that Windows 98 build 1387 has a hidden button in display properties to enable title bar gradients, and is also the first build of Windows to support this feature?
...that Windows 95 build 58s includes a hidden tabbed mode in the Cabinet?
...that a series of terrorist attacks caused major sudden changes to Windows XP's advertising campaign?
...that a Nashville Plus Pack build of Internet Explorer 4 included a humorous banner of the Internet Explorer logo kicking the Mozilla mascot as its page loading animation, meant as a jab towards its competition against Netscape?
...that Reversi in the Windows NT 3.1 April 1991 build displays square pieces, because the code for drawing circles wasn't implemented yet?
...that Windows XP build 2223 had commented out code in its Business theme file that would allow the user to configure different colors based on its settings?

Featured article

Some of the new features introduced in Windows 3.00 MDK Version 59; much of which are multimedia-centric.

Windows 3.00 MDK Version 59 is an early build of Windows 3.0 Multimedia Edition, which was shared on 19 December 2016. The operating system is based on Windows 3.00a and implements a series of multimedia features, such as sound drivers, applications, and screen savers. This pre-release version was likely distributed at the Multimedia Developer Conference, held by Microsoft between 27 and 28 November 1990.

The build notably includes support for various device drivers such as joystick-to-mouse input translation, Sound Blaster 1.x/2.0 support, and extended display capabilities. It also emphasizes strongly on audiovisual content, as support for the MIDI and Waveform specifications were implemented alongside a dedicated media player application. Certain applications included as part of Windows 3.00a were also overhauled to take advantage of the new multimedia capabilities, and applications now support emitting sound based on specific system events. A new Control Panel application design was also introduced, and screen savers were added to help prevent screen burn-in on CRT monitors.

The build comes with development tooling and code samples that allow developers to work on Multimedia PC-compatible applications. (Full article...)