DOSBox-X 0.83.15 2021-07-01 08:53

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

For usage information please look at the DOSBox-X user guide, which is available from the DOSBox-X Wiki.

0.83.15

• Release notes for this version:
  https://dosbox-x.com/release-0.83.15.html
• Enhanced the network redirector functions for the
  Windows platform, so that you can for example list,
  open, write, copy, and execute files in UNC network
  paths in the form \\COMPUTER\FOLDER directly when
  network redirector function is enabled and secure
  mode is disabled on Windows systems. (Wengier)
• MOUNT command followed by a drive letter only will
  show the current status of the drive, or show that
  the drive is not mounted if so. You can make the
  message shorter with the -q option, and filter out
  non-local drives with "-o local" option. (Wengier)
• Added NE2000.COM (packet driver for NE2000 network
  card) which will appear in Z:\SYSTEM directory when
  NE2000 networking feature is enabled. (Wengier)
• Added /H option to TRUENAME command to return the
  full filename on the host system for a specified
  file/directory on a mounted local drive. (Wengier)
• Added option "starttranspath" which if set to true
  will automatically translath all paths in command-
  line to host system paths when starting programs to
  run on the host system. You can also toggle this
  function dynamically from the drop-down menu ("DOS"
  => "Host system applications" => "Translate paths
  to host system paths". (Wengier)
• Added option "drive z expand path" which when set
  to true (default) will automatically expand %PATH%
  environment variable to include the subdirectories
  on the Z drive when only the Z:\ path is specified
  for compatibility purposes. (Wengier)
• Added option "turbo" in [cpu] section to enable
  Turbo (Fast Forward) mode at start. You can also
  change it from the command-line via CONFIG command
  (e.g. "config -set turbo=true"). (Wengier)
• Added value "quiet" to "log console" config option
  to only log DOS console outputs. (Wengier)
• Added menu command to spawn a new instance of
  DOSBox-X to Mac OS X builds to work around the
  singular app instance model the Finder tends to
  prefer, so that users can run multiple instances
  if they wish. (joncampbell123)
• MacOS builds will once again have Fluidsynth,
  libslirp, and FFMPEG support from revised .app
  building code. For best results support is enabled
  at compile time only if Brew is installed along
  with Brew builds of those packages. (joncampbell123)
• MacOS coreaudio MIDI support will continue with
  the default soundfont rather than giving up
  if it cannot select the custom soundfont specified
  in the config file. (joncampbell123)
• Fixed MacOS bug where coremidi would attempt
  MIDI output even if no MIDI destinations are
  available, which is apparently the case on
  Big Sur. (joncampbell123)
• The names of advanced config options will now be
  listed in the common config reference file (i.e.
  dosbox-x.reference.conf) too. Several previously
  advanced options are now common options. (Wengier)
• Command "CONFIG -L" will now list the global config
  file for DOSBox-X (if any). (Wengier)
• There is now a special DOS function for DOSBox-X at
  Int21h/AH=2B/CX=0x4442h('DB')/DX=0x2D58h('-X'), as
  follows: AL=0h (DOSBox-X installation check), AL=1h
  (SDL version check), AL=2h (platform check), AL=3h
  (machine type check), and AL=4h (DOSBox-X version
  check). For example, you can get installed DOSBox-X
  version by calling the function Int21h/AX=2B04h/CX=
  0x4442h/DX=0x2D58h in your program - AL and AH will
  become 0, and BX will return the DOSBox-X version
  number after "0." (e.g. BH=83, BL=15). (Wengier)
• It is now possible to translate text for graphical
  Configuration Tool and Mapper Editor interfaces.
  The sizes and/or positions of some buttons in these
  interfaces are adjusted accordingly too. (Wengier)
• Config option "usescancodes=auto" now implies false
  for PC-98 mode in SDL1 builds. (Wengier)
• Config option "pc-98 force ibm keyboard layout" now
  defaults to "auto", which implies "true" if a U.S.
  keyboard layout is detected and implies "false"
  otherwise. Also fixed some input keys for the PC-98
  mode. (Wengier & maron2000)
• For PC-98 mode, if both FONT.ROM and FREECG98.BMP
  are not found in the directory, then DOSBox-X will
  now use internal Japanese font (also used by DOS/V
  and JEGA systems) and the built-in 8x16 SBCS font
  pre-generated from FREECG98.BMP. (Wengier)
• Added DBCS awareness support for special characters
  "" and "|" in Chinese/Japanese/Korean code pages
  so that they will be treated properly as trailing
  bytes of double-byte characters. (Wengier)
• Improved handling of clipboard copy/paste involving
  DBCS characters with TrueType font (TTF) output in
  standard mode. The clipboard copy/paste feature is
  also supported in DOS/V and JEGA modes. (Wengier)
• The config option ttf.halfwidthkana (now in [ttf]
  section) will enable low ASCII boxing characters
  for the TrueType font (TTF) output too. This option
  is now enabled by default for JP mode, and printing
  these characters is also supported. (Wengier)
• Added support for showing Chinese/Japanese/Korean
  characters in the SDL-drawn menu (in addition to
  characters in different SBCS code pages) and the
  Configuration Tool interface (so e.g. DOS command
  help will show correctly for these languages). You
  can change the DBCS font used by Configuration Tool
  interface via fontxdbcs14 config option. (Wengier)
• Added support for inputing DBCS characters using
  system input method (IME) in Windows SDL1 build.
  Chinese (Simplified and Traditional) IMEs may work
  with the default video setting and a Chinese code
  page or Chinese DOS/V mode. Japanese & Korean IMEs
  may require DirectX mode for the SDL1 library (set
  option "videodriver" to "directx" in [sdl] section
  for this). There is a new config option "ime" in
  [dosbox] section to control it. When set to "auto"
  (default), it is enabled for Windows SDL1 builds
  only if DOSBox-X is started with a CJK code page or
  in PC-98, JEGA or DOS/V mode. (Wengier)
• Added support for Japanese EGA mode (machine=jega)
  by adopting code from DOSVAXJ3. As with DOS/V, you
  can optionally set the SBCS and DBCS fonts with
  fontxsbcs, fontxdbcs (and fontxsbcs19, fontxdbcs24,
  etc) options in [dosv] section of config file, or
  the default fonts will be used for them. (Wengier)
• Added support for DOS/V (Japanese mode) by adopting
  code from DOSVAXJ3. Also added support for Chinese
  and Korean DOS/V modes. Set option "dosv" to "jp",
  "chs" (or "cn"), "cht" (or "tw"), or "ko" in [dosv]
  section of the config file to enable DOS/V mode for
  different CJK languages. There are now also various
  font-related (and V-text screen mode) options added
  in [dosv] section for the DOS/V support. For the
  Simplified Chinese (code page 936), you can also
  enable GBK extension of the standard GB2312 charset
  with "gbk" option for Simplified Chinese DOS/V and
  the TrueType font (TTF) output. (Wengier)
• Added support for codepage conversion of file names
  in "drivez" folder (for customization of Virtual
  Drive Z:) so that they will appear properly on this
  drive according to the code page set. (Wengier)
• Improved support for DBCS (double-byte) characters
  on mounted FAT drives with Chinese/Japanese/Korean
  codepages (932/936/949/950). (Wengier)
• The "Unexpected control character" error message
  which may appear when executing certain batch files
  is now a debug message (belong to the "misc" type)
  instead of showing to the DOS console output.
• Added "videodriver" config option in [sdl] section
  to force a video driver (such as windib/windows,
  x11, dummy) for the SDL library to use. The video
  driver "directx" has been enabled for Windows SDL1
  builds (without certain functions). (Wengier)
• There is a now a [ttf] section in the config file,
  and TTF-related config options are moved/renamed
  from [render] section to this section (previous
  config options "ttf.*" in [render] section become
  • (with "ttf." dropped) in [ttf] section). Windows
    installer will also automatically transfer previous
    TTF options to the new [ttf] section. (Wengier)
• When setting to "auto", config option "allow lmsw
  to exit protected mode" will be active for Pentium+
  CPUs instead of 486+ CPUs. (Wengier)
• Fixed a bug which may lead to crash when pasting
  text via the DOS clipboard API (e.g. the 4DOS CLIP:
  device) in non-Windows platforms. (Wengier)
• Fixed the possible freeze when output was switched
  from TrueType font (TTF) output and you tried to
  reset the virtual machine. (Wengier)
• Fixed non-representative filenames on local drives
  in current code page causing memory corruption for
  e.g. Windows 3.1 Setup on non-Windows platforms.
  These entries will no longer appear to DOS guest
  system in incompatible code pages. (Wengier)

DOSBox-X 0.83.14 2021-06-01 02:25

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

For usage information please look at the DOSBox-X user guide, which is available from the DOSBox-X Wiki.

0.83.14

• Release notes for this version:
  https://dosbox-x.com/release-0.83.14.html
• Added support for directories on the Z drive, so
  there is no need to put all files/programs on the
  root directory of Z drive any more. Only one-level
  directories are currently supported. There are now
  six directories on the Z drive by default, namely
  4DOS, BIN, DEBUG, DOS, SYSTEM, TEXTUTIL. Most files
  that previously appeared on the root directory of
  Z drive are now categorized into directories, with
  addition of some files/programs, such as additional
  4DOS files, text utilities in TEXTUTIL directory
  and TITLE command to change window title. Default
  value of the %PATH% envonment variable has been
  expanded to include these subdirectories, but if
  you use a custom path then you may want to include
  these directories in your %PATH%. (Wengier)
• You can now specify a command shell located on a
  mounted local drive via SHELL= command in [config]
  section of config file after the drive is properly
  mounted via INSTALL= command. (Wengier)
• Extended START command to Linux and macOS systems.
  It's disabled by default just like on Windows host
  systems, but can be enabled by setting "startcmd"
  to "true" or with the -hostrun command-line option
  (replacing -winrun command-line option). (Wengier)
• CHCP command in the TrueType font (TTF) output now
  allows code page 932, 936, 949, and 950 to display
  Chinese, Japanese and Korean characters and file
  names with DBCS support enabled in non-PC98 mode.
  By default DOSBox-X will enable DBCS characters and
  auto-detection for box-drawing characters in these
  code pages, and these can be disabled by setting
  new options "ttf.autodbcs" and "ttf.autoboxdraw" to
  "false". There is also option "ttf.halfwidthkana"
  to enable half-width Katakana in Japanese non-PC98
  machines. KEYB command (and "keyboardlayout" config
  option) also accept "jp", "ko", "cn", "tw", "hk",
  "zh" as key layout names for code pages. (Wengier)
• Added support for printing Chinese/Japanese/Korean
  DBCS (double-byte) characters when these code pages
  are active, which by default ("auto") is enabled for
  the TTF output, but can be enable or disabled for
  all outputs by setting option "printdbcs" to "true"
  or "false" in [printer] section. (Wengier)
• Added ability to toggle between Shift-JIS (or Kanji)
  and graphical modes using Ctrl+F4 key (or ESC )3 and
  ESC )0 escape sequences) in the PC-98 mode. There
  is now also an indication of graphical mode in the
  function row. (nmlgc)
• Added the "usesystemcursor" config option (in [sdl]
  section) which when set to true will use host system
  mouse cursor instead of drawing a DOS mouse cursor
  when the mouse is not locked. (Wengier)
• When opening "Save..." or "Save Language File..."
  dialogs in the Configuration Tool, the new dialogs
  will now automatically be in focus. For the language
  file, the name of the current language file will be
  filled and modifiable. Pressing ENTER key saves the
  config or language file, and pressing ESC key will
  close these dialog boxes. (Wengier)
• Command "CONFIG -wl" will show the name of language
  file being written to (if there is a language file
  loaded then "CONFIG -wl" alone will write to it),
  and command "CONFIG -ln" will show current language
  name (if any), or you can use command "CONFIG -ln
  <lang_name> -wl <lang_file>" to specify a language
  name when writting to a language file. (Wengier)
• Added special properties to CONFIG command such as
  "hostos", "programdir", "workdir", "configdir", and
  "userconfigdir" so that commands like "CONFIG -GET
  hostos" and "CONFIG -GET workdir" will get the host
  system OS and DOSBox-X working directory. (Wengier)
• If a config option can only be changed at run-time,
  "CONFIG -set" will now show such a message. You can
  use "CONFIG -setf" to bypass, but the setting won't
  take effect in the current session. (Wengier)
• SETCOLOR command can now change the text-mode color
  schemes in outputs rather than the TrueType font
  output too (VGA mode only). (Wengier)
• Added support for new TTF word processor type "FE"
  for FastEdit, a new DOS text editor with functions
  to view and change text styles. (Wengier)
• Added "ttf.wpfg" config option in [render] section
  which can optionally specify a foreground color
  (0-7) for the TTF output, similar to "ttf.wpbg" for
  the background color in the TTF output. (Wengier)
• Added "ttf.printfont" config option in [render]
  section which when set to true (default) will force
  to use the current TrueType font (set via ttf.font)
  for printing too when using TTF output. (Wengier)
• Added additional options to the "mouse_wheel_key"
  config option to allow conversion of mouse wheel
  movements into Ctrl+up/down arrow (option 4), Ctrl+
  left/right arrows (option 5), Ctrl+PgUp/PgDn keys
  (option 6), and Ctrl+W/Z as used by WordStar & EDIT
  (option 7) . More menu options are added to "Mouse
  wheel movements" menu group as well. (Wengier)
• Added menu option "Print text screen" (under "DOS")
  to print current DOS text screen, if the printer
  feature has been enabled. (Wengier)
• Added menu options "Display TTF blinking cursor",
  "CJK: Switch DBCS/SBCS mode", "CJK: Auto-detect
  box-drawing characters" and "CJK: Allow half-width
  Japanese Katahana" under "Video" => "TTF options"
  menu group to toggle the TTF options ttf.blinkc,
  ttf.autodbcs, ttf.autoboxdraw and ttf.halfwidthkana
  in [render] section of the config file. (Wengier)
• Support for UTF-8 encoded language files. Specify
  a DOS code page with "country" option in [config]
  section of the config file. Windows SDL1 menu and
  macOS menu are now also compatible with Unicode
  language files and characters. Also improved code
  page compatibility for text in the SDL drawn menu
  and the Configuration Tool. (Wengier)
• Cleaned up the welcome banner messages and other
  messages involving boxdrawing characters for easier
  translations into certain languages. (Wengier)
• Command-line option -silent now implies -nomenu,
  SDL_AUDIODRIVER=dummy and will disable all sound-
  related config option as well. (Wengier)
• Command-line option -fastlaunch will now suppress
  messages by "automountall=true" option. Also added
  value "quiet" to "automountall" config option to
  auto-mount all Windows drives quietly. (Wengier)
• Added default value "auto" to "backend" option in
  [ne2000] section of the configuration which will
  automatically select slirp backend if available,
  then pcap backend if available. (Wengier)
• Improved handling of Ctrl+C/Ctrl+Break for shell-
  based DOS programs. (Wengier)
• Setting "irq" to "0" in [sblaster] section of the
  config file will use the default IRQ number for the
  sound card type. Also fixed "irq=-1", "dma=-1" and
  "hdma=-1" not working as desired. (Wengier)
• Option "dpi aware=auto" now defaults to "true" when
  full-screen mode is requested when DOSBox-X starts
  in Windows SDL1 builds. (Wengier)
• The return value of AL in Int21/AX=0Eh is no longer
  fixed. The game Jurassic Park may run after moving
  Z drive to a different letter (e.g. E:). (Wengier)
• Added "Change current floppy image..." and "Change
  current CD image..." menu options to change the
  currently active floppy disk image(s) on drive A: &
  B: and ISO/CUE image(s) on CD drives respectively.
  This makes it possible to change the active floppy
  disk and/or CD images while a guest system (e.g.
  Windows 9x) is currently running. (Wengier)
• Added "Restart DOSBox-X with config file..." menu
  option to start DOSBox-X with the specified config
  file automatically from the menu. (Wengier)
• Added "Refresh rate..." menu option (under "Video")
  to set the video refresh rate. (Wengier)
• Added "Enable A20 gate" menu option (under "DOS")
  to enable or disable the A20 gate. (Wengier)
• Added "maximize" config option in [sdl] section to
  automatically maximize the DOSBox-X window at start
  (SDL2 and Windows SDL1 builds only). (Wengier)
• Added "allow lmsw to exit protected mode" config
  option in [cpu] section to control whether the LMSW
  instruction allows the guest to clear the PE bit
  (leave protected mode).
• Added "debuggerrun" config option in [log] section
  to set the run mode when DOSBox-X Debugger starts.
  You can now also switch them from the menu ("Debug"
  => "Debugger option: ..."), including "debugger",
  "normal" and "watch", the later two corresponding
  to debugger commands "RUN" and "RUNWATCH". Also,
  the built-in DEBUGBOX command without a parameter
  will start the DOSBox-X debugger. (Wengier)
• Debugger interface now accepts the '0' key as a
  command to single-step in case F11 isn't an option.
  If you are using XFCE's Terminal emulator, this is
  helpful because Terminal app takes F11 for itself.
• "Debug" menu is now a top-level menu for debugging
  builds (for non-debugging builds there is "Logging
  console" menu group under "Help"). Also added more
  debug options including "Generate NMI interrupt"
  and "...

DOSBox-X 0.83.13 2021-04-30 23:16

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.13 Release Notes and the user guide here: DOSBox-X Wiki

0.83.13

• DOSBox-X can now resolve file paths in its config
  options that include environment variables on non-
  Windows platforms (e.g. ${HOME}..) as well. A new
  config option "resolve config path" (in [dosbox]
  section) is added to control path resolving in the
  config file (e.g. to resolve tildes only by setting
  to "tilde", or disable all path resolving). (Wengier)
• System menu text in Windows builds now match the text
  in the drop-down menus to be translatable by language
  files and is compatible with Unicode. (Wengier)
• The error "Access Denied" is returned instead of
  "File not found" for files opened exclusively in
  another program on mounted local drives. (Wengier)
• S386C928 hardware cursor fixed to divide X coordinate
  by bytes per pixel indicated in the control register
  to match apparent Windows 3.1/95 behavior. Cursor
  now tracks host properly even in highcolor/truecolor
  modes.
• Added support for the RetroWave OPL3 hardware player.
  Set "oplemu=retrowave_opl3" in [sblaster] section of
  the config file to use it. Config options including
  "retrowave_bus", "retrowave_spi_cs", "retrowave_port"
  are added to adjust its settings. (ClassicOldSong)
• Added support for S386C928 hardware cursor color
  selection in 256-color mode, which is different
  from later cards.
• S3 XGA "BYTE SWP" fixed only to byte swap if the
  transfer is 16-bit wide. This fixes the dither
  pattern drawn by Windows 95/98 when you select
  "Shutdown" from the Start menu.
• IMGMAKE command is now disabled in the secure mode,
  similar to commands like IMGMOUNT. (Wengier)
• Added config options "working directory option" and
  "working directory default" in [dosbox] section of
  the config file to provide various options for the
  users to control DOSBox-X's working directory. For
  example, DOSBox-X can use the primary config file
  directory or the DOSBox-X program directory as its
  working directory. You can view the DOSBox-X'safe
  working directory with CONFIG -L command. DOSBox-X
  is also able to save the working directory that a
  user selects to global config files. (Wengier)
• DOSBox-X will now also try to read the config file
  named dosbox-x.conf in the user config directory
  when searching for config files at start.
• Added new command-line options -promptfolder and
  -nopromptfolder which will cause the folder prompt
  dialogs to show or not to show at startup.
• Mac OS X builds will prompt the user to select a
  folder at startup if run from the Finder (or from
  the root directory). The folder selected will then
  become the current working directory of DOSBox-X.
  This makes it possible to start DOSBox-X with a
  config file of your choice and to control where
  the capture, save states and other files go.
• Fixed Tseng ET4000 640x480 256-color SVGA mode
  when using the ET4000.BIN VGA BIOS, or Windows 98.
• Added segment limit checks in Normal core for
  MOVSB/MOVSW/MOVSD and STOSB/STOSW/STOSD, which is
  needed for DOSBox-X to work with the Windows 3.1
  S3 86C928 display drivers that use segment limit
  exceptions to fake a linear framebuffer.
• Added S3 XGA "byte swap" emulation, needed for
  correct menu/titlebar display in Windows 3.1 when
  using the S3 86C928 driver.
• Added YUV (YUY2) overlay to S3 Trio64V+ card
  emulation. Tested with XingMPEG under Windows 3.1
  and ActiveMovie under Windows 98.
• Added machine types for 5 different variations of
  S3 chipset: Vision864, Vision868, Trio32, Trio64,
  and (experimental) Trio64V+, ViRGE, ViRGE/VX, and
  S3 86C928.
• Removed second PCI BAR for S3 MMIO register space.
  S3 datasheets do not show a second BAR. Windows 95
  is perfectly happy without it.
• S3 SVGA XGA emulation BlitRect now supports
  COLOR_CMP. DirectX-based Windows 95 games are now
  able to blit in 256-color mode with a transparent
  color key value.
• ANSI.SYS emulaion now supports the "Device Status
  Report" escape when asked through code 6 (report
  cursor position)
• Fixed RAM mapping bugs related to MDA/CGA/Hercules
  emulation and the "allow more than 640kb" option,
  that failed to map RAM as expected, and because of
  that, easily triggered a "corrupt MCB chain" error
  message.
• Worked around the mounting issue for disk or CD
  image files with LaunchBox, by allowing a mounting
  command-line with single quotes like IMGMOUNT D
  'X:\FILES\DOS.IMG' on Windows systems. (Wengier)
• Restored Pentium MMX emulation code for the dynamic
  x86 core to that of version 0.83.11 for better
  compatibility with some Windows 9x games. (Wengier)
• Added "compresssaveparts" config option (in the
  [dosbox] section) which when set to false will not
  compress the components in saved states. (Wengier)
• When the current reported DOS version is less than
  7.x and the user tries to mount a LBA or FAT32 disk
  image, DOSBox-X will now show a message to ask if
  the user wants it to set the required DOS version
  automatically and proceed. (Wengier)
• DOSBox-X will now show the folder mounted after
  mounting to a drive from the menu. (Wengier)
• Fixed MOUNT and IMGMOUNT commands unable to mount
  directories or image files that contain non-ASCII
  characters in the code page on Windows. (Wengier)
• Fixed CapsLock may not work properly in Windows
  SDL1 builds when -fs option is used. (Wengier)
• Fixed the cycle information on the title bar when
  the Turbo mode is enabled. (Wengier)
• Fixed that some games using the DOS4GW Extender
  may not work due to swap file issue. (Wengier)
• Fixed that the clipboard copy and paste may not
  work when the current code page is 808 or 872
  and you are using Windows. (Wengier)
• Fixed the handling of the "Save & Restart" button
  in Configuration Tool when using Direct3D output
  in Windows SDL2 builds. (Wengier)
• Fixed incorrect display issue when using TrueType
  font (TTF) output with customized screen dimension
  when fastbioslogo=true is set. (Wengier)
• Fixed CD audio not looping for individual tracks
  in games like Alien Trilogy. (kcgen)
• The command "MIXER /LISTMIDI" now lists the ROM
  directory/files and sound fonts for MT32, Synth
  and FluidSynth MIDI device when active. (Wengier)
• Debugger "DOS XMS" command will only list handles
  that are allocated, or with nonzero address or
  nonzero size, to avoid showing irrelevant
  information. (joncampbell123)
• Added LOADFIX -EMS option to allocate/free
  EMS (expanded memory). (joncampbell123)
• LOADFIX -D -XMS will free all XMS blocks
  allocated by LOADFIX -XMS. (joncampbell123)
• LOADFIX -A will not allocate memory unless there
  is memory below 64KB to fill. (joncampbell123)
• INT 15h PS/2 mouse functions now clear pending
  PS/2 mouse interrupt as part of the BIOS call.
  This should resolve unresponsive mouse issues
  with Windows 3.1. (joncampbell123)
• Add config option "mt32.model" in the [midi]
  section to force a MT-32 model to use. (Wengier)
• Updated the MUNT MT-32 library to the latest
  version 2.5.0. (Wengier)
• Updated FLAC decoder library to the latest version
  (0.12.29 by David Reid). (Wengier)
• Integrated SVN commits (Allofich)
  • r4436, r4437: Rewrite store integer instructions
    to check if the result fits.(vogons 78127)
  • r4447: Attribute Controller port alias on EGA
    machine. Fixes EGA display of older Super Pac-Man
    release.

DOSBox-X 0.83.13 2021-04-15 13:24 [BETA]

This is a mid-month beta release.

0.83.13

• Mac OS X builds will prompt the user to select a
  folder at startup if run from the Finder (or from
  the root directory). The folder selected will then
  become the current working directory of DOSBox-X.
  This makes it possible to start DOSBox-X with a
  config file of your choice and to control where
  the capture, save states and other files go.
• Fixed Tseng ET4000 640x480 256-color SVGA mode
  when using the ET4000.BIN VGA BIOS, or Windows 98.
• Added segment limit checks in Normal core for
  MOVSB/MOVSW/MOVSD and STOSB/STOSW/STOSD, which is
  needed for DOSBox-X to work with the Windows 3.1
  S3 86C928 display drivers that use segment limit
  exceptions to fake a linear framebuffer.
• Added S3 XGA "byte swap" emulation, needed for
  correct menu/titlebar display in Windows 3.1 when
  using the S3 86C928 driver.
• Added YUV (YUY2) overlay to S3 Trio64V+ card
  emulation. Tested with XingMPEG under Windows 3.1
  and ActiveMovie under Windows 98.
• Added machine types for 5 different variations of
  S3 chipset: Vision864, Vision868, Trio32, Trio64,
  and (experimental) Trio64V+, ViRGE, ViRGE/VX, and
  S3 86C928.
• Removed second PCI BAR for S3 MMIO register space.
  S3 datasheets do not show a second BAR. Windows 95
  is perfectly happy without it.
• S3 SVGA XGA emulation BlitRect now supports
  COLOR_CMP. DirectX-based Windows 95 games are now
  able to blit in 256-color mode with a transparent
  color key value.
• ANSI.SYS emulaion now supports the "Device Status
  Report" escape when asked through code 6 (report
  cursor position)
• Fixed RAM mapping bugs related to MDA/CGA/Hercules
  emulation and the "allow more than 640kb" option,
  that failed to map RAM as expected, and because of
  that, easily triggered a "corrupt MCB chain" error
  message.
• Worked around the mounting issue for disk or CD
  image files with LaunchBox, by allowing a mounting
  command-line with single quotes like IMGMOUNT D
  'X:\FILES\DOS.IMG' on Windows systems. (Wengier)
• Restored Pentium MMX emulation code for the dynamic
  x86 core to that of version 0.83.11 for better
  compatibility with some Windows 9x games. (Wengier)
• Added "compresssaveparts" config option (in the
  [dosbox] section) which when set to false will not
  compress the components in saved states. (Wengier)
• When the current reported DOS version is less than
  7.x and the user tries to mount a LBA or FAT32 disk
  image, DOSBox-X will now show a message to ask if
  the user wants it to set the required DOS version
  automatically and proceed. (Wengier)
• DOSBox-X will now show the folder mounted after
  mounting to a drive from the menu. (Wengier)
• Fixed MOUNT and IMGMOUNT commands unable to mount
  directories or image files that contain non-ASCII
  characters in the code page on Windows. (Wengier)
• Fixed the cycle information on the title bar when
  the Turbo mode is enabled. (Wengier)
• Fixed that some games using the DOS4GW Extender
  may not work due to swap file issue. (Wengier)
• Fixed that the clipboard copy and paste may not
  work when the current code page is 808 or 872
  and you are using Windows. (Wengier)
• The command "MIXER /LISTMIDI" now lists the ROM
  directory/files and sound fonts for MT32, Synth
  and FluidSynth MIDI device when active. (Wengier)
• Debugger "DOS XMS" command will only list handles
  that are allocated, or with nonzero address or
  nonzero size, to avoid showing irrelevant
  information. (joncampbell123)
• Added LOADFIX -EMS option to allocate/free
  EMS (expanded memory). (joncampbell123)
• LOADFIX -D -XMS will free all XMS blocks
  allocated by LOADFIX -XMS. (joncampbell123)
• LOADFIX -A will not allocate memory unless there
  is memory below 64KB to fill. (joncampbell123)
• INT 15h PS/2 mouse functions now clear pending
  PS/2 mouse interrupt as part of the BIOS call.
  This should resolve unresponsive mouse issues
  with Windows 3.1. (joncampbell123)
• Add config option "mt32.model" in the [midi]
  section to force a MT-32 model to use. (Wengier)
• Updated the MUNT MT-32 library to the latest
  version 2.5.0. (Wengier)
• Updated FLAC decoder library to the latest version
  (0.12.29 by David Reid). (Wengier)

DOSBox-X 0.83.12 2021-04-01 00:00

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.12 Release Notes and the user guide here: DOSBox-X Wiki

0.83.12

• Tandy graphics emulation fixed to accept 8 bits
  for vertical total and vertical display CRTC
  registers, which is needed for the tweaked
  graphics mode used by Math Rabbit to display
  correctly.
• INT 10h will no longer fill in three fields in
  the BIOS data area (video CTL, char height, and
  video switches) unless the machine type is
  EGA or VGA. Those fields do not exist otherwise.
  Certain games like Mindscape's "Road Runner" game
  require those fields to be zero as part of it's
  Tandy detection routine.
• PCjr mode will omit the reserved graphics RAM
  MCB block, and will subtract 16KB from the top
  at the BIOS level, if emulating 128KB system
  memory or less.
• You can now run PCjr mode with as little as
  128KB of RAM. Removed 256KB minimum check from
  DOS kernel. Certain games (Mickey's Space
  Adventure) require memsizekb=128 and memsize=0
  in PCjr mode or else it will not work correctly
  due to how the game locates video system memory.
• Fixed Tandy mode to place video memory at the
  top of conventional memory and allow running
  Tandy mode with a memsizekb setting as low as
  64KB, though 256KB or higher is recommended.
• Added Tandy "real memory size" field in the
  BIOS data area.
• Tandy emulation updated to subtract 16KB from
  top of conventional memory, which fixes some
  games and follows DOSBox SVN behavior and real
  hardware according to others on the Vogons forums.
• Fixed bug that limited Tandy mode to 624KB of
  conventional memory. 32KB of video RAM is taken
  from top of memory, losing half of the 32KB
  breaks games that write to the system RAM instead
  of B800:0000 segment and causes half the graphics
  to not render.
• CD-ROM image emulation now supports ISO images
  that are 2GB or larger, 32-bit integer size limit
  has been lifted.
• Increased upper limit of "prebuffer" config option
  (in [mixer] section) from 100 to 250. It is still
  recommended to set a value less than 100. (Wengier)
• Added scrollbar buttons to the Configuration Tool,
  so that the scrollbars better resemble the style of
  the Windows 3.1 scrollbars.
• The help window for the Configuration Tool will now
  display possible and default values for the config
  options in addition to the descriptions. (Wengier)
• Updated the MMX patch code by kekko. (Wengier)
• MIXER command now supports the /GUI option to show
  a popup window to display the mixer information.
  Also improved its /LISTMIDI option which will show
  the name of the current MIDI handler and you can
  optionally specify a MIDI handler name (win32/alsa)
  to show the information for this handler. (Wengier)
• Improved the compatibility of AUTOTYPE command with
  games like Asterix & Obelix. (Wengier)
• The config options ttf.wpbg, ttf.bold, ttf.italic,
  ttf.underline, ttf.strikeout, and ttf.char512 can
  now be modified dynamically with CONFIG -SET ...
  commands, e.g. CONFIG -SET ttf.wpbg=2. (Wengier)
• The minimal value for the ttf.ptsize config option
  has been decreased from 10 to 9. (Wengier)
• Added menu item "Save logging as..." (under "Help"
  -> "Debugging options") to save the current logging
  content to the specified file. (Wengier)
• Added slirp backend support for the NE2000 network
  feature (in addition to the existing pcap backend).
  There are config sections named [ethernet, slirp]
  and [ethernet, pcap] now to set the options for the
  slirp and pcap backends respectively. Please refer
  to the networking guide in the DOSBox-X Wiki for
  more information about the backends. (Jookia)
• FAT driver can now support PC-98 HDI images with
  partitions that start at any physical sector even
  if the start is not a multiple of the ratio of
  logical to physical sector size. This allows the
  HDI image of Dragon Knight 4 to mount.
• Control character 7 (BEEP) is now allowed while
  executing batch files without warnings. (Wengier)
• With the setting "core=auto" DOSBox-X now updates
  the menu in the "CPU core" menu group automatically
  between "Normal core" and "Dynamic core" to reflect
  the CPU core which is currently in use. (Wengier)
• Fixed Windows 95/98 installation failures caused by
  FAT driver and DOS API changes in previous version.
• Fixed well-intended but erroneous fall through case
  in the INT15 handler that prevented 3rd party mouse
  drivers from detecting the PS/2 mouse.
• Fixed the color issue with the Configuration Tool
  in the macOS SDL1 build. (ant_222)
• Fixed switching ttf.cols, ttf.lins, and ttf.font
  options dynamically in full-screen mode. (Wengier)
• Fixed menu options "Increase TTF font size" and
  "Decrease TTF font size" (both under "Video" =>
  "TTF options") not working (but keyboard shortcuts
  and those in the system menu work). (Wengier)
• Fixed setting option "ttf.wp=xy3" or "ttf.wp=xy4"
  not working (but "ttf.wp=xy" did work). (Wengier)
• Fixed preview function in WordStar not working for
  TrueType font output in previous version. (Wengier)
• Fixed the issue that caused Windows 3.x group file
  corruption on hard disk image files. (SnikoLoft)
• Integrated SVN commits (Allofich)
  • r4416: Added ability to start and stop avi
    recording, and to start keymapper, from config.
  • r4405: Smarter clearing of the dynrec cache.

DOSBox-X 0.83.11 2021-03-01 00:00

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.11 Release Notes and the user guide here: DOSBox-X Wiki

0.83.11

• Added support for the clipboard device (CLIP$) and
  DOS clipboard API on non-Windows systems (they were
  previously only supported on the Windows platform).
  In Linux SDL1 build only read access is supported
  whereas both read and write access are supported in
  all other builds. Also, selecting and copying text
  to the host clipboard using a mouse button or arrow
  key is now supported in macOS SDL1 build. (Wengier)
• Added "Paste Clipboard" button to the AUTOEXEC.BAT,
  CONFIG.SYS and 4DOS.INI sections in Configuration
  Tool for pasting clipboard contents. (Wengier)
• Windows SDL2 builds now use same clipboard pasting
  method as Windows SDL1 builds by default instead of
  the BIOS keyboard function. The method is now also
  available for Linux and macOS (both SDL1 and SDL2)
  builds (although it is disabled by default on these
  platforms). A menu option "Use BIOS function for
  keyboard pasting" is added to the "Shared clipboard
  functions" menu group (under "Main") to use BIOS
  function for the clipboard pasting instead of the
  keystroke method. Make sure this option is disabled
  if pasting clipboad text into Windows 3.x/9x apps
  (e.g. Notepad & Write) is desired. This setting can
  be changed with "clip_paste_bios" config option in
  in [sdl] section of the config file too. (Wengier)
• With the config option "startcmd=true" or command-
  line option -winrun, Windows applications can now
  be launched from within a DOS program or from the
  4DOS shell in addition to built-in shell. (Wengier)
• Added the "disable graphical splash" config option
  in [dosbox] section which when set will cause a
  text-mode BIOS splash screen to be always displayed
  at startup instead of the graphical one. If the
  TrueType font (TTF) output is enabled the text-
  mode BIOS screen is used automatically. (Wengier)
• Added a simple BIOS Setup Utlity, which will show
  a summary of the current system configuration and
  allow users to change the date and time. Press Del
  key at the BIOS boot screen to enter. (Wengier)
• Added config option "showbasic" in [sdl] section
  which when set to false will hide DOSBox-X version
  number and running speed in the titlebar. (Wengier)
• Added experimental option to load a VGA BIOS ROM
  image and execute it, instead of our own INT 10h
  emulation. If enabled, it will load the specific
  ROM file into C000:0000. If not specified, it
  will choose based on machine type. VGA BIOS ROM
  images (e.g. et4000.bin for Tseng ET4000 emulation)
  can be dumped from real hardware or downloaded from
  the PCem ROMs collection. It can be set with config
  option "vga bios rom image" in [video] section.
• Improved handling for file- and record-locking
  for non-Windows platforms. Portions of the code
  are adopted from DOSEmu. (Wengier)
• Improved handling for the setting "ansi.sys=false",
  such as fixing the welcome screen messup in this
  case and allowing the use of a custom ANSI TSR
  (such as NNANSI.COM) instead. (Wengier & stu)
• You can now press Ctrl+C or Ctrl+Break to break
  from long outputs from commands like TYPE, MORE,
  COPY, DIR /S, and ATTRIB /S. (Wengier)
• Renamed MEM.COM to MEM.EXE to match DOS. (Wengier)
• Rewrote built-in TREE command instead of the one
  from FreeDOS to support long filenames. (Wengier)
• DELTREE is now an external command appearing on
  drive Z: as DELTREE.EXE instead of a builtin shell
  command, since it is an external command in a real
  DOS system. (Wengier)
• Added REPLACE command to replace files, resembling
  the MS-DOS counterpart. This command is compiled
  with long filename support. (Wengier)
• Added PUSHD and POPD commands so that you can store
  the current directory and changes to the specified
  directory (optionally also the current drive), then
  changes the directory/drive back. PUSHD command
  without arguments show stored path(s). (Wengier)
• Added COLOR command to change current foreground
  and background colors. It usage is similar to the
  same-named command in the Windows command prompt.
  For example, command "COLOR fc" produces light red
  on bright white; COLOR without an argument restores
  the original color. (Wengier)
• Added CHCP command to view the current code page,
  or change the current code page for the TrueType
  font (TTF) output. Supported code pages include:
  437, 808, 850, 852, 853, 855, 857, 858, 860, 861,
  862, 863, 864, 865, 866, 869, 872, and 874. You can
  now also set the code page for TTF output via the
  optional second parameter of the "country" option
  in [config] section of the configuration. (Wengier)
• Added function to automatically save states in the
  specified time interval (in seconds). You can also
  specify a save slot or start and end save slots to
  be used. For example, "autosave=10 11-20" will set
  a 10-second time interval for auto-saving, and the
  save slots used will be between 11 and 20. If no
  save slot is specified, then the current save slot
  will be used for auto-saving. Putting a minus sign
  before time interval causes the auto-saving function
  to not be activated at start. You can optionally
  also specify up to 9 program names for this feature,
  e.g. "autosave=10 11-20 EDIT:21-30 EDITOR:35" will
  cause program "EDIT" to use save slots 21-30, and
  "EDITOR" to use save slot 35, and other programs to
  use save slots 11-20. Added a menu option "Auto-save
  settings..." to manage the auto-saving feature at
  run-time. A menu option "Enable auto-saving state"
  is added to the "Save/load options" menu group under
  "Capture" to toggle auto-saving when the function is
  enabled. Likewise, a menu option "Select last auto-
  saved slot" is added to the "Select save slot" menu
  group (also under "Capture") to switch to the last
  auto-saved slot (if any). (Wengier)
• The Configuration Tool windows are now scalable, so
  that they will no longer look very small in e.g.
  full-screen or High DPI modes. (ant_222)
• If the -defaultdir option is the only or the last
  command-line option and no parameter is specified,
  then directory of the primary config file (if any)
  becomes the DOSBox-X default directory. (Wengier)
• You can now change the current output dynamically
  with CONFIG command, e.g. "CONFIG -set output=ttf"
  and "CONFIG -set output=default". (Wengier)
• The command "KEYB US" will return the DOS codepage
  to 437 if current codepage is different. (Wengier)
• The setting "output=default" will enable the OpenGL
  output for Linux systems if possible. (Wengier)
• Fixed the CGA/MCGA/MDA/Hercules-specfic shortcut
  function buttons in Mapper Editor, and the screen
  colors after exiting from Mapper Editor when using
  these machine types in Direct3D output (SDL1 build).
  Also fixed the messages in the welcome banner for
  these machine types to inform users the new default
  shortcuts (Ctrl(+Shift)+[F7/F8]). (Wengier)
• Fixed DOS Int21/AH=0x5a "Create temporary file"
  function not generating unique files. (Wengier)
• Fixed that the current drive goes back to Z drive
  when combined unmounts & mounts are used. (Wengier)
• Fixed PC-98 keyboard handling of CTRL+A through
  CTRL+Z. CTRL+C now works correctly in PC-98 mode.
• Fixed crash of Free Pascal compiler with dynamic
  core and setting "use dynamic core with paging on =
  auto" introduced in the previous version. (Wengier)
• Fixed launching Windows programs when the working
  directory has no 8.3 filename entry. (Wengier)
• Fixed issues with full-screen switch in some cases
  when the TrueType font output is enabled. (Wengier)
• Fixed an issue in MinGW builds that no data will be
  sent to the OPL3Duo board. (DhrBaksteen)
• Fixed screen flickering when hovering over the menu
  with Direct3D output in the Windows SDL2 build that
  was introduced in the last version. (Wengier)
• Fixed mounting disk/CD images with long paths from
  the "Drive" menu may not work properly. (Wengier)
• Fixed that the "Save" button in Configuration Tool
  did not save config file in last version. (Wengier)
• Integrated SVN commits (Allofich)
  • r4346: Fix a long-standing crash that occurred
    when disconnecting a second joystick after
    partially mapping it.
  • r4344: Add F8 to toggle printable characters on
    and off in the debugger.
  • r4340: Fix behavior when main memory allocation
    fails.
  • r4336: Correct an oversight of r4186 when floppy
    disks are mounted.
  • r4330: some big endian improvements and drive_fat
    fixes. (jmarsh)
  • r4320: Report Q-Channel track number in BCD,
    meaning it is not converted to binary by the
    CD-ROM device driver. Fixes the CD-Player feature
    of DOS Navigator 1.51 when playing past track 15.
  • r4318: Add LOGC debug command to log cs:ip only.

DOSBox-X 0.83.10 2021-02-01 00:00

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.10 Release Notes and the user guide here: DOSBox-X Wiki

0.83.10

• The Windows key(s) in Windows and the Command key(s)
  in macOS will now be displayed as the "Windows" and
  "Command" keys instead of the "super" and the "meta"
  keys in SDL1 builds just like SDL2 builds. (Wengier)
• Cursor blinking rate for TrueType font (TTF) output
  can now be customized with the ttf.blinkc option.
  Set an integer between 1 (fastest) and 7 (slowest)
  to change TTF cursor blinking rate, or setting it to
  0 for no cursor (or false for non-blinking cursor as
  in previous versions), with the default value being
  6 on PC-98 systems and 4 elsewhere. (Wengier)
• Fixed parallel port emulation to allow MDA port 3BCh
  to work properly.
• Enhanced the printer function on Windows platforms
  to allow printer names to be specified in [printer]
  section via the "device" option for direct printing
  to the selected device. If left empty, then Windows
  Print dialog will always be shown, or specifying "-"
  will cause it to show only once (unless the user
  clicks "Cancel"). Under "Help" menu there is now a
  menu option "List Printer Devices" to list printer
  devices on Windows, and the parallel port LPT1 now
  defaults to the printer on all platforms. (Wengier)
• The dynamic_x86 CPU core can now handle page faults
  non-recursively, so you can now run the dynamic_x86
  core with Windows 9x/ME without crashes, although
  this may slightly decrease the performance, and it
  may be disabled by setting the config option "use
  dynamic core with paging on" in [cpu] section to
  "false"; the default value of this option has been
  changed to "auto" which will enable/disable itself
  based on whether the 386 paging and a guest system
  has been enabled. Also fixed incorrect behavior for
  handling trap flags in the dynamic core and updated
  the MMX code for improved performance. (koolkdev)
• Added support for Direct3D output on Windows SDL2
  builds just like Windows SDL1 builds to become the
  default output in all Windows builds. (Wengier)
• DOSBox-X now natively supports the pixel-perfect
  scaling! Set the option "output=openglpp" in [sdl]
  section of the config file to enable this output.
  Alternatively, the output can be selected from the
  menu ("Video" => "Output" => "OpenGL perfect") at
  run-time. It is recommended to set config options
  and "aspect=true" (whenever the emulated display
  has an aspect ratio of 4:3) and "doublescan=false"
  for openglpp output. Also, with high DPI displays
  (e.g. on Windows 7+ with DPI scaling enabled) it
  works better with full-screen mode and the setting
  "dpi aware=true". It was implemented by ant_222
  (patch author) with some code cleanups by Wengier.
• Updated the Windows installer to add a page for
  new users to select a video system output to use -
  the default output (Direct3D), OpenGL with pixel-
  perfect scaling (openglpp or "OpenGL perfect") for
  improved image quality, and the TrueType font (TTF)
  output for text-mode DOS applications. (Wengier)
• You can now supply a ZIP/7Z file as a parameter to
  DOSBox-X directly so that it will be mounted as C:
  drive when DOSBox-X starts. (Wengier)
• Added overlay support for mounting PhysFS drives
  so that you can specify a write location when you
  mounted a ZIP/7Z archive by adopting an old patch.
  For example, command "MOUNT C C:\DIR -T OVERLAY"
  will specify path C:\DIR(\C_DRIVE) as the write
  location after mounting C: drive as a PhysFS drive
  with a command like "MOUNT FILES.ZIP". (Wengier)
• Added ability to resolve file paths that include
  environment variables on Windows or tildes (~) on
  other platforms for various options in the config
  file, such as language and mapper file paths, MT32
  ROM & FluidSynth soundfont paths, [config] section
  options as well as file outputs for the printing
  and serial/parallel port functions. (Wengier)
• Added calculator for DOS (EVAL.EXE), which appears
  on Z drive and can calculate both simple (such as
  sin(0) and cos(0)) and many advanced mathematical
  expressions in either command-line mode and or the
  interactive mode. (Wengier)
• Added support for standard (VGA/EGA/CGA) and mono
  mode dual-screen setup by porting the patch. You
  can now start DOSBox-X with the option -display2
  followed by a color (white, green, amber) to enable
  this feature on debug builds. (Wengier)
• You can now translate texts in DOSBox-X's drop-down
  menus. The message files as written by the config
  tool (CLI or GUI) will contain the menu texts for
  translations from the English language. (Wengier)
• Added "file access tries" config option (in [dos]
  section) so that if a positive integer is provided
  (e.g. 1 or 3) DOSBox-X will try to read/write/lock
  files on mounted local drives for the specified
  number of times before failing on Windows builds.
  It is especially useful for networked DOS database
  applications that require record locking. (Wengier)
• Added "bannercolortheme" config option (in [dosbox]
  section) so that users can change the background
  color theme of the welcome banner from the default
  blue color when DOSBox-X starts. (Wengier)
• Added "pcaptimeout" config option (in the [ne2000]
  section) to specify a read timeout value for pcap
  in milliseconds, or default value (-1 on Windows
  or 3000 otherwise) will be used. (Wengier & Jookia)
• Added "Save & Restart" button to the Configuration
  Tool's "Save" option for saving the config file and
  then automatically restarting DOSBox-X with this
  saved configuration. Command-line options -wcboot,
  -wcdboot and -wcpboot are added to CONFIG command
  which resemble -wc, -wcd, and -wcp options but will
  reboot DOSBox-X after writing configfile. Command-
  line option -bc (-bootconf) is also added to reboot
  with specified config file (or the primary loaded
  config file if not specified) directly. (Wengier)
• The config option ttf.font will now search for TTF
  fonts in the directory as specified by the fontpath
  option in [printer] section too. (Wengier)
• Added special properties to CONFIG command such as
  "screenwidth", "screenheight", "windowwidth", and
  "windowheight" so that commands like "CONFIG -GET
  screenwidth" and "CONFIG -GET screenheight" will
  get the current screen width and height. (Wengier)
• BOOT command without a parameter will now try to
  boot the current drive if possible. (Wengier)
• You can now change properties such as "fullscreen",
  "glshader" and "windowposition" dynamically with
  CONFIG command. For example, command "config -set
  fullscreen=true" and "config -set windowposition="
  will now switch on the full-screen mode and center
  the window position respectively. For TrueType font
  output, you can now also change the TTF font, the
  number of rows and columns on the TTF screen, and
  the word processor for TTF dynamically using CONFIG
  command, e.g. "config -set ttf.font=test", "config
  -set ttf.lins=30", "config -set ttf.cols=100" and
  "config -set ttf.wp=wp". The limits for the options
  ttf.cols and ttf.lins are increased too. (Wengier)
• Implemented the DOS network redirector functions so
  that the host name can be reported to DOS programs,
  unless the secure mode is enabled. You may need to
  set either the option ipx=true in [ipx] section or
  the option ne2000=true in [ne2000] section. Also
  added config option "network redirector" to [dos]
  section which if set to false disables the network
  redirector even with IPX/NE2000 enabled. (Wengier)
• Fixed an issue that the DOSBox-X window size may be
  incorrect when restoring from a maximized window in
  the SDL2 builds. (Wengier)
• Fixed that the menu option "Select OpenGL (GLSL)
  shader.." not working properly sometimes. (Wengier)
• Fixed Ctrl+C not working in GNU ed. (Wengier)
• Fixed large ISO images (>2GB) unable to be mounted
  using IMGMOUNT command. (Wengier)
• Fixed build failure on Gentoo Linux. (fonic)
• 3dfx games can now work with the Glide passthrough
  feature when a guest system (guest DOS or Windows
  9x) is currently running. The default setting for
  config option "keep private area on boot" in [dos]
  section is changed from "false" to "auto". (Wengier)
• Improved the speed of the Voodoo hardware emulation
  for running games like Tomb Raider 3dfx. (Wengier)
• Improved OPL3Duo support, such as adding a buffer
  thread to get rid of slowdowns & breakups in audio
  playback when using the board. (DhrBaksteen)
• Updated the Tiny File Dialog library to the latest
  version v3.8.5, which fixes issues such as the
  compatibility problem with Windows XP. (Wengier)
• Updated FLAC, MP3, and WAV CD-DA decoder libraries
  to the latest versions (0.12.28, 0.6.26 and 0.12.18
  respectively; per David Reid). (Wengier)
• Integrated SVN commits (Allofich & Wengier)
  • r4426: Emulate debug register 6 during trap flag
    emulation (and normal int 1). Fixes 544 (jmarsh)
  • r4401: Improve xchg to handle unwritable memory
    better for core_dyn_x86.
  • r4399: Finish up and add LOOP_NE and LOOP_E for
    core_dyn_x86.
  • r4393: Re...

DOSBox-X 0.83.9 2021-01-01 00:00

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.9 Release Notes and the user guide here: DOSBox-X Wiki

For Linux, depending on your platform you can either use the RPM package below or the Flatpak package in the DOSBox-X Flathub page.

0.83.9

• Physical CD drives are now mountable in SDL2 builds
  just like SDL1 builds, so commands like "MOUNT -CD"
  should work in both SDL1 and SDL2 builds. Some code
  is adopted from the SDL2_CDROM library. (Wengier)
• Implemented file locking support for mounting disk
  image files so that you cannot mount the same disk
  image files in read/write mode at the same time as
  this can cause possible disk corruptions. A config
  option "locking disk image mount" is added to the
  [dosbox] section which when set to false (or if the
  user mounts the image files read-only) will bypass
  the locking of image files. Also improved the DOS
  file locking function, which can be disabled by
  setting "share=false" in [dos] section. (Wengier)
• Implemented PhysFS support so that you can mount
  archives (e.g. ZIP/7Z) as drives in read-only mode,
  e.g. "MOUNT C TEST.ZIP" or "MOUNT D FILES.7Z". Some
  code is ported from a custom DOSBox fork. The menu
  option "Mount an archive file (ZIP/7Z)" is added to
  Drive menu to mount archives as Drives. (Wengier)
• INT 13h now obeys the "hard drive data rate limit"
  setting, using the same disk I/O delay code as
  INT 21h file I/O. [Issue #2039]
• Linux/X11 SDL1 builds: Combine window move/resize
  into one call if possible, and not during window
  manager hints, to avoid resize problems with the
  XFCE 4.14 platform.
• Added menu option "Create blank disk images..."
  (under "DOS" menu) to create blank floppy or hard
  disk images of a common disk size, including 360KB,
  400KB, 720KB, 1.2MB, 1.44MB and 2.88MB for floppy
  disk images and 250MB, 520MB, 1GB, 2GB, 4GB and 8GB
  for hard disk images. The 1GB option (-t hd_1gig)
  is also added to IMGMAKE command. (Wengier)
• The Configuration Tool will now be centered within
  the DOSBox-X window for a better looking. (Wengier)
• Added config option "synchronize time" in [dosbox]
  section which when set to true will allow DOSBox-X
  to automatically synchronize the date and time with
  the host system, unless you manually change date
  and/or time. A menu option "Synchronize host date/
  time" is added to the DOS menu. The function uses
  IRQ0 handler; it will not work in PC-98 mode nor if
  the timer isn't running at the standard 18.2Hz tick
  rate, as any other rate does not make sense and
  will cause only jitter and error. Also fixed two
  Demoscene entries sl_fokus and sl_haloo which use
  BIOS_TIMER with a faster hardware tick rate.
• Added config option "showdetails" which when set to
  true enables the menu option "Show FPS and RT speed
  in title bar" at start. It is equivalent to -showrt
  and -showcycles command-line options. (Wengier)
• Improved compatibility with Watcom C++ 2.0 when
  long filename (LFN) support is enabled. (Wengier)
• Added support for starting DOSBox-X in a specific
  display on a multi-screen setup (Windows builds as
  well as Linux/macOS SDL2 builds). A config option
  "display" is added to the [sdl] section that users
  can specify a display for the DOSBox-X window to
  start. The option can be combined with the existing
  "windowposition" config option to specify the
  position on the specified display/screen. (Wengier)
• DOSBox-X will now pop up a message box to inform
  the user when a Direct3D pixel shader is loaded
  from the menu on the Windows platform. (Wengier)
• Extended serial (COM) ports from COM1-COM3 to COM1-
  COM9 in the [serial] section. The config options
  serial4-9 are advanced options. You can optionally
  specify base addresses for any serial ports. When
  the "file" option is used, you can additionally
  specify a program to open the file with "openwith"
  option. If the specified program cannot be executed
  due to some problem, DOSBox-X will try to start a
  program as specified with the "openerror" action,
  or it will show an error. For both serial (COM) and
  parallel (LPT) ports options, the program commands
  can be quoted with double quotes, or with single
  quotes if the "squote" option is added. (Wengier)
• Extended parallel (LPT) ports from LPT1-LPT3 to
  LPT1-LPT9 in the [parallel] section. Config options
  lpt4-9 are advanced config options. You can also
  optionally specify base addresses and IRQs for
  these ports. The parallel1-9 config options are
  enhanced to allow the generated files to be started
  with the specified action: "openpcl" to start a
  program to open the file if the print output is
  detected to be PCL; "openps" to start a program if
  the print output is detected to be PostScript (PS);
  "openwith" to start a program otherwise. If you'd
  like to specify parameters then be sure to properly
  quote the string(s). Furthermore, if any of the
  specified program(s) cannot be executed, DOSBox-X
  will try to start a program as specified with the
  "openerror" action, or show an error. (Wengier)
• Added "openwith" and "openerror" config options to
  [printer] section to start the specified program to
  open the printer output file. The [printer] section
  also accepts "fontdir" option where you can change
  the path ("FONTS" by default) where the printer TTF
  fonts (including courier.ttf, ocra.ttf, roman.ttf,
  sansserif.ttf, script.ttf) are located. If no TTF
  font can be found (either from the custom path or
  system path) for printing, the internal TTF font
  for the TTF output will be used. (Wengier)
• Added read-only options to the Drive menu to mount
  host folders/drives or image files to the specified
  drive letter in read-only mode. (Wengier)
• You can now use a single mapper file for both SDL1
  and SDL2 versions of DOSBox-X! The new mapper file
  will be divided to sections [SDL1] and [SDL2] for
  both versions. The mapper file can be specified
  with the mapperfile config option, or you can set
  the mapperfile_sdl1 and mapperfile_sdl2 config
  options to override mapperfile option. (Wengier)
• Added -defaultmapper command-line option which will
  use default key bindings for the mapper. (Wengier)
• The menu functions "Load mapper file", "Quick edit
  mode", "Stop clipboard pasting" and "Display state
  information" have been added to the key mapper so
  that you can now define your own shortcut keys to
  activate these functions. (Wengier)
• The default shortcuts for the "Copy to clipboard",
  "Paste from clipboard", and the "Reset window size"
  functions are now Ctrl+F5, Ctrl+F6 and Host(F11/F12)
  +BackSpace respectively. (Wengier)
• Added ttf.fontbold, ttf.fontital, and ttf.fontboit
  config options so that you can specify actual bold
  italic, and bold-italic TrueType fonts for use with
  the TTF output that will render the bold, italic,
  and bold-italic text styles using the actual TTF
  fonts (e.g. consolab, consolai, consolaz instead of
  consola) instead of making the original TTF font
  bold, italic, bold-italic automatically. (Wengier)
• DOSBox-X now supports the use of arrow keys (left,
  right, up, down, home, end) to select and copy text
  to the host clipboard in addition to a mouse button
  (subject to the specified key modifier, or use the
  QuickEdit function). The arrow keys will move the
  selections; press Home key to start the actual text
  selection and End key to end text selection and to
  copy to the clipboard; press ESC key to cancel text
  selection. Set config option "clip_mouse_button" to
  "arrows" to enable it, or select it from "Shared
  clipboard functions" menu group. (Wengier)
• You can now press the key combination Ctrl+Tab in
  the shell to see a list of files/directories that
  can be completed by the Tab completion. (Wengier)
• Added SETCOLOR command to view or change the text-
  mode color scheme settings. Also fixed the color
  palette for the TTF output. (Wengier)
• Separated "TTF options" menu group that contains
  TrueType font (TTF) related menu options from the
  "Text-mode" menu group in "Video" menu. (Wengier)
• The "Show menu bar" option now appears in system
  menu of the Windows SDL2 build too. (Wengier)
• If a language file fails to load, DOSBox-X will now
  show a warning dialog instead of exiting. (Wengier)
• The option "clip_key_modifier" now accepts values
  like "ctrlalt", "ctrlshift", "altshift". (Wengier)
• Fixed 2D texture not showing for 3dfx games in the
  Glide passthrough mode. (Wengier)
• Fixed the mouse sensitivity menu option (under the
  "DOS" menu) not working. (Wengier)
• Fixed the color palette problem when switching to
  graphic mode from mono mode. (Wengier)
• Fixed full-screen TTF output may not fully cover
  the background screen in Linux. (Wengier)
• Fixed that lines starting with "%" in [autoexec]
  section are being ignored. (Wengier)
• Fixed issues with building the code with original
  MinGW using the ./build-mingw script. (Wengier)
• Fixed option "output=ttf" not working properly with
  -startui/startmapper command-line option. (We...

DOSBox-X 0.83.8 2020-11-31 22:04

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates.

You can also see the release notes here: DOSBox-X 0.83.8 Release Notes

0.83.8

• Added support for scalable TrueType font (TTF)
  output for text-mode programs. Set "output=ttf"
  and optionally a monospaced TTF font (such as
  consola) with config option "ttf.font" to use it.
  Lines and columns can be specified with config
  options "ttf.lins" and "ttf.cols", and the cursor
  can be made blinking with the option "ttf.blinkc".
  The config options "ttf.ptsize" and "ttf.winperc"
  can be used to set the TTF font size and window
  percentage respectively. If you specify a TTF font
  size with "ttf.ptsize" then "ttf.winperc" will be
  ignored. You can also specify a word processor
  (WP=WordPerfect, WS=WordStar, XY=XyWrite) for the
  on-screen text-style and 512-character font (WP)
  features. When using the TTF output DOSBox-X will
  temporarily switch to a different output when a
  graphical mode is requested (or when trying to take
  a screenshot); the TTF output will be auto-switched
  back later), which can be customized via config
  option "ttf.outputswitch" (which defaults to auto).
  Menu items in the "Text-mode" menu group (under
  "Video" menu) have been expanded to support TTF
  options such as increasing/decreasing the TTF font
  sizes and on-screen text style toggling (including
  bold, italics, underline and strikeout). You can
  also select a TTF font to use at run-time with the
  "Select TrueType font (TTF)" menu option. (Wengier)
• Added the "Load mapper file..." menu option (under
  "Main") to select and load a DOSBox-X mapper file
  at run-time. Be sure to select a SDL1 mapper file
  for SDL1 builds, and similar for SDL2. (Wengier)
• You can now select a host key from the menu (under
  "Main") including Ctrl+Alt, Ctrl+Shift, Alt+Shift,
  or use the mapper-defined host key as in previous
  versions (which default to F11 on Windows and F12
  otherwise). A config option "hostkey" is added so
  that you can specify it from config file. (Wengier)
• Pasting text from the clipboard on macOS SDL1 build
  is now supported like Linux SDL1 build. (Wengier)
• Added support for ARM-based Apple M1 MacBook. The
  dynamic core now works on ARM-based macOS systems.
  SDL1 builds updated to use newer audio APIs on the
  macOS platform so that the audio works once again
  when compiled and run on macOS 11 (Big Sur). Prior
  to the change, ancient versions of the API dating
  back to the mid 2000s were used which no longer
  work on Big Sur.
• DOSBox-X will now look for the config file (i.e.
  dosbox-x.conf/dosbox.conf) and the mapper file in
  the directory containing the DOSBox-X executable
  too if the config or mapper file cannot be found
  in the DOSBox-X working directory. (Wengier)
• The system menu in Windows SDL1 builds is now also
  available for Windows SDL2 builds, and menu items
  "Reset font size", "Increase TTF font size" and
  "Decrease TTF font size" are added. (Wengier)
• Enhanced the mapper editor interface to allow more
  keyboard shortcuts to be added, shown in multiple
  pages in the mapper, navigable with the "Previous
  Page" and "Next Page" buttons. The text in the
  grids are now longer and clearer too. The default
  shortcuts for a few items are changed to use the
  Host key style (e.g. Host+S and Host+L for saving
  and loading states respectively). (Wengier)
• Added menu item "List network interfaces" under
  "Help" menu to list network interfaces in the host
  system for the NE2000 feature. (Wengier)
• Added menu group "DOS commands" under "Help" menu
  to display the help content for the selected DOS
  shell command (DIR, CD, etc). (Wengier)
• Configuration Tool now provides the option to save
  to the primary or user config files. (Wengier)
• Certain config options (e.g. doublescan) that were
  marked as advanced options are now general config
  options and will appear in dosbox-x.reference.conf
  apart from dosbox-x.reference.full.conf. (Wengier)
• Added config options "saveremark" (default: true)
  and "forceloadstate" (default: false) in [dosbox]
  section which can be used to control if DOSBox-X
  should ask users to enter remarks when saving a
  state or show warnings when loading a saved state
  if there is a mismatch found. (Wengier)
• The config option "pixelshader" is moved from the
  section [gui] to [render] so that it will be in the
  same section as the option "glshader". (Wengier)
• Added menu item "Select OpenGL (GLSL) shader..." to
  allow OpenGL shader switch from the menu, just like
  the function for Direct3D pixel shaders. (Wengier)
• Added menu item "Show IDE disk or CD status" under
  "DOS" menu to show the current assignments (disk or
  CD image) of the IDE controllers. (Wengier)
• Fixed IDE CD assignment may not be reset when soft
  reboots are activated from guest systems. (Wengier)
• The program 80x43.COM is added into the ZIP package
  TEXTUTIL.ZIP on the Z drive. You can also change
  current text screen to the 80x43 mode from the menu
  group "Text-mode" under "Video" menu. (Wengier)
• Enhanced MODE command so that you can change the
  number of columns and lines in the screen with the
  syntax "MODE CON COLS=c LINES=n" (c=80 or 132, and
  n=25, 43, 50, or 60). The command "MODE CON" will
  show the current number of columns and lines in the
  screen as in a real DOS system. (Wengier)
• Added FLAGSAVE command for the save state feature
  to flag (mark) one or more files to be saved and
  loaded. Type "FLAGSAVE /?" for more information on
  this command. (PogoMan361 and Wengier)
• Enhanced A20GATE command to show the current status
  of the A20 gate when no parameter is given, along
  with other small improvements. (Wengier)
• INT 21h DOS=HMA emulation, to enable the A20 gate,
  and autoa20fix, to disable the A20 gate, now checks
  whether the CPU is running in virtual 8086 mode.
  If vm86 detected, the code will control the A20
  gate by calling the XMS interface instead of direct
  reading/writing via port 92h. This consideration
  is required for autoa20fix to cooperate with
  Microsoft Windows 3.1. Note that Windows 3.1 does
  not virtualize port 92h. If it did, this workaround
  would not be necessary.
• Added -a option to LOADFIX command which will auto
  allocate enough memory to fill lowest 64KB memory
  instead of using exactly 64KB memory. (Wengier)
• Added autofixwarning option (true by default) which
  allows user to silence the messages when DOSBox-X
  tries to auto-fix "Packed file is corrupt" error
  when running a program with this issue. (Wengier)
• Added autoa20fix option (enabled by default). This
  option when enabled attempts to resolve EXEPACK
  "Packed file is corrupt" errors by temporarily
  disabling the A20 gate and running the program
  again. This may provide better support for affected
  DOS applications than the LOADFIX option. If both
  autoa20fix and autoloadfix are set, then autoa20fix
  will be tried first, and if it did not work then
  autoloadfix will be tried next.
• The autoloadfix config option changed to allocate
  only enough memory to keep the executable above the
  64KB boundary, instead of blindly allocating 64KB.
• Fixed menu items "Rescan drive" and "Swap disk" in
  "Drive" menu being reversed. (Wengier)
• Fixed CD audio issue with the game "The Secret of
  Monkey Island" when talking to the pirate in Scumm
  Bar by adapting the patch that fixes it. Thanks
  kcgen for the fix logic. (Wengier)
• Added support for MAME CHD CD images. You can now
  mount CHD images with IMGMOUNT command, or from the
  Drive menu. Based on libchdr library and the work
  of the user whocares010. (Wengier)
• Updated FLAC/MP3/WAV CD-DA decoder libraries to the
  latest versions (versions 0.12.22, 0.6.19, 0.12.14
  respectively). Thanks to mackron & kcgen. (Wengier)

DOSBox-X 0.83.7 2020-11-01 01:28

Note: Installation instructions are available from the INSTALL page. Also, always check out the DOSBox-X homepage for latest updates. The primary DOSBox-X Wiki is now located at the URL: https://dosbox-x.com/wiki

Linux Flatpak package is officially available from the DOSBox-X Flathub page.

You can also see the release notes here: DOSBox-X 0.83.7 Release Notes

0.83.7

• Implemented the x86 dynamic core for both 32-bit
  and 64-bit systems by re-porting the code from SVN.
  Dynamic core now supports either the dynamic_x86
  or the dynamic_rec core. The dynamic_x86 core will
  be used by default for x86 and x86_64 platforms and
  if "core=dynamic" is set, and Windows 9x can be run
  in this dynamic core (although at this time may
  encounter some issue with the S3 driver). You can
  also explicit specify setting "core=dynamic_x86" or
  "core=dynamic_rec" for either the dynamic_x86 core
  or the dynamic_rec core. Also thank joncampbell123
  for the 64-bit fix. (Wengier)
• You can now use your own save file (in addition to
  save slots! There are now a "Use save file" toggle
  item and "Browse save file..." for browsing save
  files on your computer. A config option "savefile"
  (in [dosbox] section) is added to specify a save
  file to use at start. (Wengier)
• Save state feature now allows users to optionally
  enter remarks when saving a state. A submenu group
  "Save/load option" is added (under "Capture") where
  you can toggle menu items "No remark when saving
  state" (for disabling input of remarks when saving)
  and "force load state mode". A menu item "Display
  state information" is added as well to display the
  information of the saved state. (Wengier)
• DOSBox-X will now use native dialog box to display
  quit warnings and save state errors. (Wengier)
• Changed some DOS error messages (such as "Illegal
  command" which now reads "Bad command or filename")
  similar to real DOS systems. (Wengier)
• ADDKEY and INT2FDBG commands now appear as programs
  on Z: drive instead of shell commands. (Wengier)
• Improved the -z (move virtual drive Z:) function of
  MOUNT command. You can move the virtual drive as
  many times as you want, and save/load states will
  work even after you move the Z: drive. (Wengier)
• Enhanced the config option "freesizecap" to allow
  the setting "fixed" which is the same as "false",
  and a new setting "relative" is added, which will
  be similar to the setting "fixed" but the reported
  free disk size will also change relative to the
  change of the free disk size ever since. (Wengier)
• Added support for Opus CD-DA tracks by porting and
  cleaning up the source code from other projects.
  Many thanks to Marty Shepard and kcgen. (Wengier)
• Support for FluidSynth MIDI Synthesizer is now
  included in the MinGW builds by default just like
  Visual Studio builds. Set "mididevice=fluidsynth"
  and a soundfont file to use it. (Wengier)
• Enabled xBRZ scaler for Visual Studio SDL2 builds
  just like Visual Studio SDL1 builds. (Wengier)
• Added menu item "Show Sound Blaster configuration"
  under "Sound" menu to show the current information
  about Sound Blaster, and also menu item "Show MIDI
  device configuration" (also under "Sound" menu)
  to show information about the current MIDI device
  such as the soundfont file in use. (Wengier)
• Added "Mount multiple disk/CD images" option to the
  mounting options of the Drive menu to allow users
  to mount more than one disk/CD images to a drive,
  swappable from the menu. Also added separators to
  the Drive submenu to make it look better. (Wengier)
• Added new CPU types to the "Emulate CPU speed" menu
  group namely 286-25MHz, 386DX-25MHz, 486DX4-100MHz,
  486DX5-133MHz, Pentium-60MHz, Pentium-75MHz, and
  Pentium-90MHz. Thanks again for the data provided
  by the user maximus105. (Wengier)
• You can now select a special key (e.g. Alt+Tab,
  Ctrl+Break, Ctrl+Alt+Del, etc) to be sent from the
  key defined in the mapper editor. The key can be
  selected (Ctrl+Alt+Del by default) from the "Send
  special key" menu group in "Main" menu. (Wengier)
• Added full Ctrl+Break emulation at the BIOS and
  DOS level, updated console emulation to match.
  The "Pause" mapper shortcut is now moved to
  HOST[F11/F12]+Pause instead of Ctrl+Pause so that
  Ctrl+Break can work properly for users, and the
  function to send the Ctrl+Break key from the menu
  ("Send special key" under "Main") is added. Also,
  the PC-98 STOP key now functions the same as the
  Ctrl+C and Ctrl+Break keys in IBM PC mode.
• Added functions "CopyToClipboard" and "QuickRun" to
  the mapper editor so that you can use shortcuts to
  activate them (default shortcuts: HOST(F11/F12)+A
  and HOST(F11/F12)+Q respectively), and a default
  shortcut HOST(F11/F12)+V is added to the clipboard
  paste function. Meanwhile, FullCore and SimpleCore
  shortcuts are removed from the mapper. (Wengier)
• Added two new menu items in the "Shared clipboard
  functions" menu group under "Main", including "Copy
  all text on the DOS screen" which will copy all
  screen text to the clipboard, and "Stop clipboard
  pasting" which allows user to stop pasting in the
  middle of pasting long clipboard content. (Wengier)
• The mouse copy/paste feature is now available for
  non-Windows systems on SDL2 builds. Also, pasting
  from the clipboard with a mapped shortcut is also
  available for Linux/X11 on SDL1 builds. (Wengier)
• Added "Use US keyboard layout" toggle menu item in
  the "PC-98" menu group under "Video" to select
  whether to force the default US keyboard layout in
  PC-98 mode, same as the "pc-98 force ibm keyboard
  layout" config option in [pc98] section. Also moved
  the "PC-98 PIT master clock" options from the "DOS"
  menu to this menu group. (Wengier)
• The full dosbox-x.reference.conf file is renamed to
  dosbox-x.reference.full.conf. The original file
  dosbox-x.reference.conf now contains common config
  options instead of all config options. (Wengier)
• The CONFIG command and Configuration Tool will now
  save common and modified config options by default.
  The -all command-line option (or "Save all options
  to the configuration file" checkbox) will force to
  save all config options. A new -mod command-line
  option is added to CONFIG command to save modified
  config options only, and a new -norem command-line
  option is added to not write remarks. (Wengier)
• Updated the Windows installer to default to the
  "typical" installation. For the full installation
  start menu items will be added for DOSBox-X builds
  copied to subdirectories. A new checkbox "Write
  common config options (instead of all) to the
  configuration file" is added which when checked
  will only write common and modified advanced config
  options to the config file. Furthermore, for both
  "typical" and "full" installations the Windows
  installer will now also copies the DLL files
  inpout32.dll (32-bit) and inpoutx64.dll (64-bit) to
  the DOSBox-X install directory for use with the
  direct parallel port passthrough feature. (Wengier)
• Improved Flatpak support for Linux. (rderooy)
• Improved message for the -help command-line option,
  adding for example -silent and -socket command-line
  options in the help messages. (Wengier)
• Added -silent command-line option to run DOSBox-X
  silently (without showing the DOSBox-X window) and
  then exit after executing AUTOEXEC.BAT. (Wengier)
• Fixed command-line option -socket not working for
  the null-modem feature. (Wengier)
• Fixed issue that aspect ratio not being respected
  in full-screen mode when a GLSL shader is enabled
  with an OpenGL output. (Wengier)
• Fixed toggle in the "Frameskip" menu group did not
  change when selecting a different option. (Wengier)
• Fixed shelling from programs may not work when the
  shell config option is set. (Wengier)
• The default country setting ("country" option in
  [config] section]) now defaults to auto-detection
  if possible, or 81 (Japan) in PC-98 mode. (Wengier)
• Increased the default maximum DOS files (adjustable
  from [config] section) from 127 to 200. (Wengier)
• Improved resetting with LOADLIN program. (Wengier)
• Improved Gravis Ultrasound (GUS) implementation to
  make it more accurately represent the GUS DMA state
  as expected by the running DOS software.
• The archive attribute will no longer automatically
  be applied to directories on non-Windows systems.
  This fixed issue with PLAYMIDI.EXE from Gravis
  Ultrasound when listing directories. (Wengier)
• Applied hack to allow the low DMA channel detection
  in the SB16 DIAGNOSE program to work. (Wengier)
• The default setting of the clip_paste_speed option
  has been changed from 20 to 30, which will help
  prevent lost keystrokes when pasting from the host
  clipboard for some programs. (Wengier)
• With Pentium CPU setting (cputype=pentium) DOSBox-X
  no longer reports FDIV bug by default. An advanced
  config option "report fdiv bug" is added to report
  such CPU bug when set to true. (rderooy & Wengier)
• Added support for the XDG_DATA_HOME environment
  variable for config directory in Linux. (rderooy)
• Added support for compiling with pcap for Windows
  MinGW builds. (Jookia)
• Added config option "windowposition" (in [sdl]
  ...