DOSBox SVN r4218 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:
r4218
Use a more compatible offset for DOS redirected interrupt vector. Works around a null pointer bug in the notes dropdown list of Jack the Ripper.
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r4217
Add experimental code to have overlay only directories. Add ability to remove directories and create them while in overlay mode.
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r4216
Add functionality to add overlay directories to drive_cache.
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r4215
Make effect of I/O delay more consistent as cycles run out. Prevents flickering in NBA Jam Tournament Edition at higher cycles, and also improves automatic speed limiting in Quake.
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Download: DOSBox SVN r4218
Source: Here