DOSBox-X Git Update (March 9, 2026)

DOSBox-X Git (2026/03/09) is a compiled version of the DOSBox branch that emulates an Intel x86 PC, enabling the running of old MS-DOS games on modern operating systems. The changelog includes numerous updates, particularly for the OSFREE branch, such as the removal of keyboard code page functionalities, DBCS tables, and certain support features like FAT LFN and UDF. It also addresses issues with PC-98 console output, improves error handling for shell executions, and refines memory management to prevent crashes. The updates aim to enhance stability and ensure compatibility with available DOS memory.

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DOSBox-X Git (2026/03/09) has been compiled. DOSBox-x is a variant of DOSBox. This DOSBox program emulates an Intel x86 PC, providing sound, graphics, mouse, joystick, modem, and other features essential for running numerous classic MS-DOS games that cannot be executed on modern PCs and operating systems like Microsoft Windows XP, Windows Vista, Linux, and FreeBSD.

DOSBox-X Changelog:
* additional
* OSFREE: Cleared out some keyboard code page references, and repeated certain *.a files due to stricter symbol ordering in the recent binutils included with Linux Mint
* additional
* OSFREE: More removals
* Integrated remote-tracking branch ‘origin/main-osfree’
* OSFREE: Set default value to align with dosbox.conf to resolve DOS extender crashes
* additional
* OSFREE: Eliminated DBCS tables, filenamechar, and collator uppercase tables
* additional
* OSFREE: Discontinued Joliet, Rock Ridge, and UDF support
* OSFREE: Removed FAT LFN support
* OSFREE: Discontinued physfs
* OSFREE: Eliminated overlay drive fs
* Integrated remote-tracking branch ‘origin/master’ into main-osfree
* revised
* additional
* cleanup
* Integrated remote-tracking branch ‘origin/main-osfree’
* Fixed potential issues with PC-98 console output
* Integrated remote-tracking branch ‘origin/main-osfree’
* Shell execution: Display failure messages appropriately. Indicate if access is denied
* retab
* OSFREE: Removed INT 21h LFN functions
* OSFREE: Ignored MS-DOS specific dosbox.conf options, including DOS version settings, and eliminated shell VER command
* additional
* OSFREE: Removed support for code page and keyboard layout
* additional
* Codepage UPX execution: Ensured error flag remains zero
* Avoided loading MS-DOS keyboard layouts in PC-98 mode
* Questioned the need to load EGA.CPI in PC-98 mode, where the complete font is already in FONT ROM. Added code to reject any CPI/CPX load requests in PC-98 mode.
* retab
* additional
* Corrected KEYB size range validation
* KEYB: Prevented full help text display upon load errors
* Code page loading: Identified out-of-range start_pos that could lead to emulator crashes, added range checks. UPX decompression code will exit with INT 20h if there is insufficient memory detected. This is called without a working PSP segment; if INT 20h is initiated, it is intercepted to signal an error and return safely instead of crashing.
* CPI/CPX codepage UPX loading: Instead of pre-allocating 0x1500 paragraphs while assuming 128KB of memory, allocated the available DOS memory, executed if sufficient, and adjusted the stack pointer accordingly to prevent EGA.CPI crashes when memsizekb=128.
* Debug printout indicating the codepage file being loaded
* Merged pull request #6144 from maron2000/update_changelog
* Updated CHANGELOG