DOSBox SVN r4326 is released. DOSBox emulates an Intel x86 PC, complete with sound, graphics, mouse, joystick, modem, etc., necessary for running many old MS-DOS games that simply cannot be run on modern PCs and operating systems, such as Microsoft Windows XP, Windows Vista, Linux and FreeBSD. However, it is not restricted to running only games. In theory, any MS-DOS or PC-DOS (referred to commonly as "DOS") application should run in DOSBox, but the emphasis has been on getting DOS games to run smoothly, which means that communication, networking and printer support are still in early development.

DOSBox also comes with its own DOS-like command prompt. It is still quite rudimentary and lacks many of the features found in MS-DOS, but it is sufficient for installing and running most DOS games.

DOSBox SVN Changelog:
r4326
Add patch 285 from MHM to fix bug 367, mimics the normal event.gain code
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r4325
fix two tiny bugs introduced by 4065.
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r4324
Fix bug 469. Give 640x480 and upwards square pixels and several fixes for high colour modes. (jmarsh)
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r4323
Fix compilation for platforms where the include guard is different and the exported symbol was changed by Khronos.
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r4322
Improve logging and OS X support (jmarsh).
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Download: DOSBox SVN r4326
Source: Here