Emulator - Added Discord integration support for Apple Silicon Macs - Fixed black bar on the OpenGL 3.0 Core renderer - Fixed screenshots on the Direct3D 9 renderer - Fixed crash when switching to full screen mode the Direct3D 9 renderer - Fixed screen area being incorrectly resized in full screen mode - Attempted fix for random FluidSynth - Changed audio back-end to OpenAL again, please let us know if you have sound issues! - Improved some Linux app metadata odds and ends User interface - Added global preference to fix the starting directory for file prompts on macOS - Fixed Settings section list being too narrow on some host machines - Fixed incorrect button order on the hard reset confirmation message - Fixed incorrect icons on some warning and error messages - Fixed incorrect warning message shown when Ghostscript is missing - Improved status bar activity indicator performance - Updated translation: Portuguese (Brazil) Machines - Added Soltek SL-56A5 Socket 7 motherboard - Added S3 86C805 internal video controller to the DECpc LPV - Added ability to load an optional language ROM (roms/machines/ibmps1_2121/F80000.BIN) on the IBM PS/1 model 2121 - Fixed Amstrad MegaPC internal video controller and CMOS password issues - Fixed MR BIOS 386SX clone and Acer V10 allowing selection of a non-existent internal video controller Hardware Core - Added fast PIT mode for improved performance when emulating 486 and newer CPUs - Fixed miscellaneous issues on machines with the ALi M1543(C) southbridge - Fixed Windows NT 3.1 installation issue on IBM 486 CPUs - Fixed RTC timer interrupt emulation inaccuracy - Fixed PIC poll mode emulation inaccuracy - Improved PIT, RTC and ACPI timer emulation performance Display - Added support for a secondary MDA or Hercules video card - Added IBM XGA-2 add-on graphics accelerator for MCA (original) and ISA (clone) - Added Reply Video Adapter (Cirrus Logic GD5426) MCA video card - Added BOCA Research 4610 (Cirrus Logic GD5428) ISA video card - Added Orchid Kelvin EZ (Cirrus Logic GD5430 and GD5434) VLB video cards - Fixed hard reset crash on the Trident TGUI 9400CXi - Fixed one instance of an emulator crash with a CMDFIFO packet 5 bad space message on the Voodoo 3 - Fixed corrupted graphics with S3 cards on BeOS - Fixed 16-bit 1280x1024 and 1600x1200 modes on ELSA Winner 2000 Pro/X S3 cards - Fixed Windows 2.10 display issues on the IBM 8514/A - Fixed overscan display issue on the IBM 8514/A - Fixed 40x25 CGA text mode on the IBM PGC - Improved VGA CRTC emulation performance Input - Improved joystick emulation performance when none is selected Sound - Added ymfm as a faster alternative for OPL2/3 emulation (can be enabled in the Sound settings; the more accurate NukedOPL is still default) - Added Sound Blaster 16 Reply MCA sound card - Added IRQ and DMA configuration to the AdLib Gold - Added IRQ configuration to the MCA standalone MPU-401 - Added SB MIDI input configuration to the Sound Blaster Pro MCV - Fixed MT-32 LCD message staying on the status bar after a reset - Fixed PnP Sound Blaster cards incorrectly retaining PnP configuration after a reset - Upgraded MT-32 emulation to Munt version 2.7.0 Network - Added Western Digital WD8013EP/A MCA network controller - Improved AMD PCnet emulation performance Storage - Added hard disk speed emulator for IDE and ESDI disks - Added Rancho RT1000B-MC MCA SCSI controller - Fixed tertiary/quaternary IDE and cassette options resetting themselves - Fixed a cue/bin emulation inaccuracy affecting some copy-protected CDs - Fixed IBM PS/2 SCSI Adapter detecting multiple copies of the same disk - Fixed Longshine LCS-6821N SCSI ASPI driver for DOS - Fixed status bar activity indicator on the IBM ESDI MCA disk controller - Fixed emulator crash with a Bad attention request message with the IBM ESDI MCA disk controller - Fixed emulator crash with a Write_MULTIPLE message when exiting DOS mode on Windows 3.1 with an IDE hard disk - Fixed emulator crash with a Hard disk image message when a host I/O error occurs on a VHD image Known issues - Enabling or disabling Resizable window while the secondary display output window is enabled crashes the emulator - Closing the secondary display output window does not reflect on the option to enable it

- Graphics fixes in Split/Second, Sol Trigger, Last Ranker, Star Wars: Clone Wars, Star Wars: The Force Unleashed, Juiced 2 and more - Vulkan performance improvement around texture loading and upscaling - Background loading of texture replacements to reduce stuttering - Fixes for assorted Scoped Storage bugs - Many software renderer improvements, both performance and accuracy - New debugging features - And much more!

General - Changed transparent color (fixes 'Thunder & Lightning' sprites) - CPU - UPD78XX - UPD7801 - Fixed IRQs - Fixed timers Amstrad CPC - Fixed green monitor palette - Added green monitor brightness Coleco - Fixed snapshot loading Super Cassete Vision - Fixed remain issues - Fixed BASIC Nyuumon RAM Ninja Kid II HW - Fixed sound init Seta HW - Thunder & Lightning: added protection

Following features are deprecated and will be removed in a future release: - SDL 2.x "bUseSdlRenderer" config and "GPU scaling" GUI options (after HW support for SDL2 is available widely enough) - The "external" disassembler (i.e. use "--disasm uae" instead) - Hatari XBios(255) API enabled with the "--bios-intercept" option (i.e. use "--natfeats" & "--cmd-fifo" options and "hconsole" instead) - The old ~/.hatari configuration file location (use ~/.config/hatari instead) - The rendering functions for 16 bits-per-pixel host screens (almost all recent hardware should have 32 bpp nowadays) Removed features (that were marked as deprecated in earlier releases): - Support for the SDL 1.2 library (i.e. SDL 2.x should be used instead) - Support for building Hatari for Windows CE has been removed, too, since this was relying on version 1.2 of the SDL library - The old UAE CPU core (i.e. the new WinUAE CPU core is now always used) - Python v2 support in Python scripts (Python 2 was end of life in 2020) Emulation improvements: Internal timers: - Rewrite the internal timers used to emulate delays/events/mfp timers (gain ~10% on average, up to 60% in very specific cases) CPU: - Improve FPU emulation (exceptions, unimplemeted instructions, fsincos) - Improve FPU emulation in softfloat mode - Improve IPL timing update in various opcodes - Faster emulation of 68000 in cycle exact mode (gain ~7%) MFP: - Use the new internal timers for MFP timers - Improve accuracy when reading MFP's Timer Data Register - More accurate emulation by processing all internal timers first before reading/writing any MFP register (was previously delayed after processing the current CPU instruction, which was too late in some cases) Video: - Fix position for detecting when VBLANK should be disabled in 50 Hz and 60 Hz DSP: - Improved interrupts handling and SSI (from Previous NeXT emulator) Sound: - Improve accuracy of YM2149's sample generation by using the main CPU clock as a reference for all timings (syncsquare effect as used in recent maxYMiser v1.53) - Use specific memory functions when doing DMA for STE and Falcon sound (don't generate bus error when pointed memory is not present) - Improve value of MFP GPIP bit 7 for DMA sound in the case of STE/TT (video mono XOR dma sound xsint) - Use 2 different signals SOUNDINT and SNDINT for Falcon (connected to MFP GPIP7 and MFP Timer A input) FDC: - Stall the CPU during 32 cycles when DMA FIFO is filled/transferred SCSI: - Improve MODE SENSE, add REPORT LUNS support IKBD: - support deltax/deltay in command $A (set mouse keycode mode) and threshold x/y in command $B (set mouse threshold) Emulator improvements: TOS support: - Support 1024k EmuTOS images also on TT & Falcon - Add country code option to select EmuTOS language, keyboard layout and screen refresh rate on Mega/ST/STe machines (ones lacking NVRAM) MIDI support: - Fix: PortMidi rejects Hatari MIDI events - Fix: MIDI IRQ needs to be re-enabled on MIDI device change even when there's no reset - Support for matching PortMidi device name by prefix when there's no exact full match RS232: - The RS232 receiver code has been rewritten to use polling instead of using a thread. This should avoid deadlocks on BSD/macOS systems when shutting down or reconfiguring the RS232 settings TT/Falcon: - Increase max TT-RAM amount to 1024 MiB - Separate config + CLI options to override NVRAM language and keyboard layout settings - NVRAM language default is taken from the LANG env variable Falcon: - Fix: restore zoom mode correctly when loading snapshots - Correct also smaller specified memory amounts to valid ones - Microphone emulation now uses SDL2 instead of PortAudio MegaSTE/TT: - Add VME/SCU registers "--vme " access option (Linux needs "none" option and TOS v2 / v3 need "dummy" one until Hatari implements real VME/SCU register emulation) VDI mode: - Relax VDI mode width alignment from 128/planes to 16/planes, and height alignment from 16 to 8 pixels SDL GUI: - Fix: ignore unrecognized events in file selector (buttons could be incorrectly shown as selected) - Fix: avoid key release event from SDL GUI closing leaking to emulation - Do VDI mode size changes in (faster) 16 pix increments, and prevent user seeing invalid VDI mode sizes - Fine-tune CPU dialog texts and keyboard shortcuts GEMDOS HD: - Fix: clear GEMDOS Fread / Fwrite errors - Fix: Allow GEMDOS tasks to use other tasks' file handles Command line: - Support "off" as alias for "none" when disabling DSP, FPU, Joysticks and VME, for consistency with HW on/off options NatFeats: - Fix: freeze with NF_STDERR when string is empty or unterminated Debugger: - Fix: profile header so that profile data post-processor knows how to parse built-in WinAUE CPU core ("uae") disassembly output, not just "ext" disassembler output - Repeat CPU & DSP "step" and "next" commands on Enter - Output PC location in CPU & DSP disassembly - More readable "variables" command output - Add "PConSymbol" variable for breaking on symbol addresses - Add "mmu" and "vme" options for "info" command - Add "scc" and "vme" (VME/SCU reg access) tracing support - Setting trace to "none" disables also xconout console output enabled by "os_base" trace option - "next subreturn" will run until current function returns, even if function calls other functions before that - Symbol loadind code is now shared between debugger "symbols" command & "gst2ascii" tool, and it can now read also long symbol names from Pure-C debug information - Auto-detection for whether section offsets should be used when loading symbol information - MIDI trace options are split to "midi" (device & MIDI events) and "midi_raw" (IRQ and register read/write access). Trace logging added also for MIDI byte writes, not just reads - Trace options are listed in alphabetical order Windows: - Next/prev drive change buttons added to SDL GUI file select dialog Build/configure: - SMALL_MEM option is enabled by default Tools: - Add (SDL2 specific) "listkeys" key mapping helper back - TOS boot tester: support 1024k EmuTOS images, misc fixes Documentation: - Compatibility updates, especially for 060 programs that need FPSP060.PRG for missing instructions emulation Fixed demos: - Hackabonds Demo (wrong vblank detection) - We Were @ HD version under GEMDOS HD (file handle access) Fixed programs: - maxYMiser FM v1.53 by gwEn (support for syncsquare effect) Fixed games: - Chambers of Shaolin : DMA sound was wrong in STE mode with 1 MB RAM (mfp gpip bit 7) - Super Hang On : fix flickering raster colors (bclr #0,$fffffa0f sometimes happened at the same time timer C expired)

Emulator - Added Direct3D 9 renderer for Windows hosts to diagnose performance regressions - Fixed crash on startup caused by missing disk image files (again) - Fixed mouse and crashing issues on Wayland Linux hosts User interface - Added MCA device list to the Tools menu (available on IBM PS/2 machines only), also listing the required Adapter Description Files for your emulated setup - Added ability to drag and drop image files on the status bar’s removable media icons Machines - Fixed Micronics 09-00021 unable to write to hard drives Hardware Display - Added IBM XGA add-on graphics accelerator for MCA (original) and ISA (clone) - Fixed FantasyLand demo on EGA cards - Fixed 256-color 1280x1024 mode on ELSA Winner 2000 Pro/X S3 cards - Fixed 256-color 640x480 mode on the 8514/A - Fixed some application-specific issues with 8514/A acceleration - Fixed 8514/A incorrectly selectable on machines without 16-bit ISA Sound - Fixed Gravis Ultrasound incorrectly selectable on machines without 16-bit ISA Storage - Fixed Windows re-detecting emulated drives on every 86Box version update - Fixed Rancho RT1000B ASPI driver for DOS Known issues - The IBM 8514/A, XGA and video cards from S3 can be selected together, which results in undefined behavior due to each card implementing a set of 8514/A features

- Debugger's cycle-accurate display update option now only displays pixels up to the raster location in the current frame - Debugger's Run To conditions correctly override +3 floppy controller breakpoints - Fixed right-hand edge corner curves being slightly wrong in fullscreen mode - Fixed RETI/RETN interrupt behaviour - Added some (useless, atm :p) conditional breakpoint "documentation"