DOSBox-X Git (May 14, 2026)

DOSBox-X Git (2026/05/14) is a new compilation of the DOSBox emulator, which replicates an Intel x86 PC to run old MS-DOS games on modern operating systems like Windows and Linux. Recent updates focus on improving the MSCDEX (Multi-Session CD-ROM Extensions), enhancing its functionality by cleaning up code and ensuring it operates better during shutdowns. Key changes include moving functions out of the MSCDEX C++ class to allow for smoother integration with CD-ROM interfaces and fixing bugs related to audio playback and ISO drives. The release aims to simplify the user experience when managing CD-ROMs and ISO files.

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DOSBox-X Git (2026/05/14) has been compiled. DOSBox-x is a variant of DOSBox. This emulator simulates an Intel x86 PC, including sound, graphics, mouse, joystick, and modem capabilities, essential for playing numerous classic MS-DOS games that are not compatible with modern PCs and operating systems, such as Microsoft Windows XP, Windows Vista, Linux, and FreeBSD.

DOSBox-X Changelog:
* retab
* Clarify if() scope
* retab
* Finally, CD swap functions properly without MSCDEX loaded. The MSCDEX object will shut down on DOS termination, eliminating a cumbersome workaround
* Move additional functions out of the MSCDEX C++ class
* Clean up MSCDEX
* Shift more from the MSCDEX C++ class into the global CPP scope
* Ensure MSCDEX startup is not executed while the DOS kernel is off or a guest OS is running
* retab
* MSCDEX: Relocate variables related to cdrom and drive information to the global scope within the CPP file. This adjustment is made because IDE and other emulators access MSCDEX emulation for CD-ROM interfaces by drive or subUnit. Moving this information from the MSCDEX C++ class allows for smoother MSCDEX shutdown on DOS terminate
* oops. This disrupts OSFREE
* ISO drive: Rather than directly reallocating the CDROM interface, delegate this to MSCDEX in a more consolidated manner, potentially enabling future changes from an ISO image to a physical drive or to empty without complications
* ISO drive: Let MSCDEX manage “empty” as a placeholder for the fake drive, maintaining consistency
* MSCDEX bugfix: Verify that the cdrom object exists (is not NULL) before querying status or halting audio playback. This resolves issues where an invalid BIN/CUE file lacking tracks can lead to a segfault upon being IMGMOUNTed
* The global CDROM_Interface_Image array is now unnecessary; remove it
* ISO drive functionality adjust for audio CD detection
* ISO drive: Adapt the code to utilize a general CDROM interface object reference instead of a lookup into an ISO image-specific interface