DOSBox-X

Cross-platform DOS emulation package
Complete, accurate emulation and more


DOSBox-X 2024.12.04 Release Notes

Release Date: December 4, 2024

Please report any issues in our issue tracker.

Also, make sure to check out our Wiki guide.

New in This Version

  • Arrange memory device allocation so that it is possible to allocate up to about 3900MB of memory instead of 3500MB. (joncampbell123).
  • Fix S3 LFB PCI base alignment error if system memory pushes it to a higher address (joncampbell123).
  • Fix EGA 640x350 4-color mode (when EGA memory size is 64KB) to display correctly. Prior to this fix, 640x350 4-color only worked properly if the INT 10h Video Parameter Table was enabled. (joncampbell123).
  • Fix S3 VGA memory size reported through register CR36 to cap at 4MB and set the value correctly. This fixes a known issue where setting vmemsize to 8MB caused Windows 98 to report memory size as 2.5MB. (joncampbell123).
  • Fixed a problem when VZ Editor is resident in PC-98 mode. (nanshiki).
  • INT 10: SVGA mode 0x6A does not exist on plain VGA hardware. (joncampbell123).
  • INT 10: Fix mode 0x6A (800x600 4-color SVGA) to use a correct dot clock so that the refresh rate is >= 60Hz instead of 37Hz, and make sure mode 0x6A is a 100% clone of VESA BIOS MODE 0x102. (joncampbell123).
  • Fix MMX/SSE instruction decoding, correct some mistakes in MMX emulation. (joncampbell123).
  • IMGMAKE: Add -partofs option to allow control of where the partition begins in the image (joncampbell123).
  • IMGMAKE: Add -align option so that the FAT filesystem can be arranged for more optimal I/O on devices with larger sectors, such as modern 4096-byte/sector drives. (joncampbell123).
  • IMGMAKE: Add -label option so that the generated FAT filesystem has the specified volume label. (joncampbell123).
  • MDA emulation: Fix non-blink attributes 0xF0 and 0xF8 to correctly render bright green background. (joncampbell123).
  • Fixed crash when a CD image was loaded to an “empty” drive (maron2000)
  • Log loaded .conf file (maron2000)
  • Supress redundant screen reports in log (maron2000)
  • Fixed mouse capture locking by middle button (maron2000)
  • Fixed toggling the menu option “Autolock mouse” did nothing (maron2000)
  • Fixed build failure with libc++ 19 (DimitryAndric)
  • Fixed fullscreen mode not responding when launched in TTF mode in Windows (maron2000)
  • Fixed crashes when changing floppies mounted by drive numbers on a booted guest OS (maron2000)
  • Fixed launching host programs with white spaces in path (Windows) (maron2000)
  • Convert paths from relative to absolute when launching host programs in a mounted drive (Windows) (maron2000)
  • Added an option not to pause after host program execution is completed (maron2000)
  • Fixed corrupted display when loading language files at launch (maron2000)
  • Fixed Z Drive path expansion to be case insensitive (maron2000)
Previous release: 2024.10.01 (release notes) Next release: 2025.01.01 (release notes)