# melonDS changelog

> melonDS release notes.

- Vendor: melonDS
- Category: Games
- Official site: https://melonds.kuribo64.net/
- Tracked by: What's New (https://whatsnew.fyi/product/melonds)
- Harvested from: GitHub (melonds-emu/melonds)
- Entries below: 10 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

## Releases

### 1.1

- Date: 2025-11-18
- Version: 1.1
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/1.1
- Permalink: https://whatsnew.fyi/product/melonds/releases/1.1

* 3D: use 32-bit division in software renderer (Arisotura)
* fix 8-bit NO$GBA debug register writes (FrankHB)
* fix save type for Legacy of Ys - Books I and II (CasualPokePlayer)
* ROM info dialog: make DS banner more accurate (Rayyan)
* DSi: add DSP HLE, DSP audio, mic input (Arisotura, CasualPokePlayer)
* make input system thread-safe (fixes random multiplayer crash) (Arisotura)
* CI: various vcpkg improvements (Nadia)
* JIT/x64: ensure writable code memory after alloc (Rayyan)
* JIT: add support for PaX MPROTECT on NetBSD (Rayyan)
* JIT: handle W^X codemem in fault handler (Rayyan)
* SD/MMC: fix crash when accessing port with no device connected (Arisotura)
* gdb stub: fix reading wrong code for vCont packet (jonko0493)
* CI: add OpenBSD CI (Izder456)
* DLDI: fix log2(size) in driver header (Arisotura)
* camera: fix CAM_MCNT reset behavior (Arisotura)
* CI: add x64 FreeBSD and NetBSD CI (Rayyan)
* audio: add high-quality resampling with blip-buf (Nadia)
* 3D: fix UB in software renderer when drawing polygons with linear interpolation and Z-buffering (Arisotura)
* AR: add extra D400000x data processing opcodes (Arisotura)
* Qt6: use new way to access the native display/window on X11/Wayland (Nadia)
* nix: update inputs and add dev shell Qt wrapper workaround (Nadia)
* DSi: add support for the main RAM size register, with hack to work around loader crash (Arisotura)
* AR: add support for importing cheats from usrcheat.dat, improve UI (Arisotura)
* fix UI glitchiness under Wayland when OpenGL is used (Arisotura, thanks PCSX2 team)
* fix minor Thumb BLX immediate bugs (Jakly)
* update xxHash to 0.8.3 (JordanTheToaster)
* reduce frontend audio buffer size to 512, fix audio sync (Nadia)
* fix bug that could randomly break audio output (Arisotura)
* compute renderer: implement tile size scaling to alleviate glitches at high resolutions (FireNX70)
* SPU: fix uninitialized variable causing potential crash (Nadia)
* add support for building melonDS on Windows without MinGW (Nadia)
* JIT: add OpenBSD compatibility (Izder456)

### 1.0

- Date: 2025-07-08
- Version: 1.0
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/1.0
- Permalink: https://whatsnew.fyi/product/melonds/releases/1.0

* build system and CI fixes (Nadia)
* DSi title manager: fix handling of title strings (Rayyan)
* fix gdbstub not activating until the console is reset (ZNixian)
* improve audio when not running at 60FPS (Jakly)
* fix a lot of warnings (Nadia)
* fix framelimiter bugs (Jakly)
* add support for solar sensor without using Boktai ROM (Jesse)
* set SDL_HINT_APP_NAME (redbluegreenhat)
* fix undefined behavior when indexing into ARCode::Code (Jesse)
* DLDI: add support for unaligned I/O in melonDLDI driver (Arisotura)
* audio settings: fix mic settings not applying when closing the dialog (Arisotura, Nadia)
* multiplayer: load firmware from correct instance-specific file (Arisotura)
* 3D: small fix to translucency flag assignment (Jakly)
* AES: load Tad key (edo9300)
* slot-2: add support for Motion Pak and Guitar Grip (asie)
* DSP: fix PDATA reads (Arisotura)
* slot-2: don't return 0 when attempting to read from the GBA GPIO address (edo9300)
* camera: always trigger DMA when reaching the end of a frame (Arisotura)
* NDMA: fix IRQ in infinite repeat mode (Arisotura)
* camera: fix resolution selection code (Arisotura)
* UI: fix OpenGL issues with multiple windows (Arisotura)
* UI: add a way to tell windows apart (Arisotura)
* camera: make timings and FIFO more accurate (Arisotura)
* DSi: add support for 32-bit bus VRAM timings (SCFG_EXT9 bit13) (Arisotura)
* sound: use single buffer, improves audio latency (Sparronator9999)
* fix "full bios boot" not being set properly on initial DSi class creation (Jakly)

### 1.0rc — 1.0 RC

- Date: 2024-11-21
- Version: 1.0rc
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/1.0rc
- Permalink: https://whatsnew.fyi/product/melonds/releases/1.0rc

* add splashscreen (Arisotura)
* add About dialog (Nadia)
* emulation fixes for calico (fincs)
* make the frontend mostly thread-safe
* refactor core to support multiple instances in one process
* OpenGL renderer: avoid undefined Z when using W-buffering (Generic)
* improve microphone input (Arisotura)
* add support for multiple windows (Arisotura)
* new configuration system (Arisotura)
* add OpenGL compute shader renderer (Generic)
* implement framerate target presets (Jakly)
* fix microphone blow noise input (Generic)
* add LAN support (Arisotura)
* add Nix flake (Nadia)
* attempts at improving local multiplayer connections (Arisotura)
* many accuracy improvements to the software 3D renderer (Jakly)
* fix inaccuracy with NO$GBA debug registers (pants64DS)
* OpenGL renderer: add support for changing BG0HOFS midframe (Arisotura)
* fix zstd ROM loading issues (Nadia)
* audio: add Gaussian (SNES) interpolation (Nadia)
* fix DSiWare detection (JesseTG)
* add support for R4 Revolution/M3 Simply carts (asiekierka)
* fix DS/GBA comm not working when using FreeBIOS (Nadia)
* probably more

### 0.9.5

- Date: 2022-11-03
- Version: 0.9.5
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9.5
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9.5

* remove incorrect color profile from PNG icons (Nadia)
* DLDI fixes for the Smash demo (Arisotura)
* fix gaps in I/O handling (Arisotura)
* fix invalid savemem commands, fixes Dementium (Arisotura)
* FreeBIOS: add VRAM-compatible LZ77 decompress function, fixes Yoshi's Island (Arisotura)
* default firmware: in DSi mode, emulate DWM-W015 wifi board instead of DWM-W024 (Arisotura)
* default firmware: save WFC settings to separate file (Arisotura)
* disable firmware overrides UI when firmware override isn't checked (Nadia)
* 2D: more accurate fade/blending (Arisotura)
* DSi: add support for GXFIFO NDMA (Arisotura)
* DSi: add mainRAM mirror at 0x0C000000 (Arisotura)
* add 3DS 5:3 aspect ratio, refactor aspect ratio code (Nadia)
* OpenGL: fix 16x resolution on macOS (Nadia)
* fix triggers being recognized as negative analog stick values during mapping (Nadia)
* fix joystick mapping buttons on macOS (Nadia)
* DSi: preliminary implementation of SNDEXCNT (Generic)
* DSi: fix SD inserted/removed IRQ bits (Generic)
* DSi: implement 8/16bit access to AES registers (Generic)
* DSi: fix SCFG_MC cart-inserted bit (Generic)
* JIT: invalidate blocks in ARM7 VRAM/WRAM when it is remapped (Generic)
* fix ROM banner reading when the ROM has no banner (Rayyan, Arisotura)
* fix UTF16 ROM title handling in the ROM info dialog (Rayyan)
* wifi: improvements to wifi emulation (Arisotura)
* wifi: shared-memory based sync/comm mechanism for local wifi (Arisotura)
* proper support for multiple melonDS instances for multiplayer (Arisotura)
* DSi: actual, proper camera support (Arisotura)
* DSi: fix DSP enough that it will actually work (Arisotura)
* fix OpenGL context handling (Stenzek, Generic, Nadia)
* force-align all memory accesses (instead of just CPU memory accesses) (Arisotura)
* better CLI parameter handling (patataofcourse)
* fix bugs in DSi direct boot (Arisotura)

### 0.9.4

- Date: 2022-03-09
- Version: 0.9.4
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9.4
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9.4

* Redesign of the Input dialog (Rayyan)
* Use DraStic open-source DS BIOS replacement (Swordfish90, asiekierka)
* Generate non-bootable firmware replacement (Swordfish90, asiekierka, others)
* Support for syncing DLDI/DSi SD image to a folder (Arisotura)
* ARM9 PU (code/data abort) support in interpreter mode (Arisotura)
* Fix ADPCM decoding bug resulting in potential crackling (Arisotura)
* Block sound DMA from reading the ARM7 BIOS (Arisotura)
* Smarter SDL initialization (andrigamerita, Nadia, Arisotura)
* Properly center the main window on macOS (Nadia)
* Don't try to render if the emulator is inactive (Nadia)
* Fix potential issues with DSi title importing (Nadia, Epicpkmn11)
* Custom path support (Arisotura)
* Fix nifi socket init on BSD and macOS (Nadia)
* Add support for zero addresses in AR codes 3xxxxxxx to Axxxxxxx (Arisotura)
* Lower window refresh rate if running too fast (RSDuck)
* Wifi power-saving support (RSDuck)
* Allow swap-screen hotkey to swap between displaying only top screen and only bottom screen (ZackWeinstein)
* Add RAM search dialog (2jun0)
* Add power management dialog for setting battery parameters (Rayyan)

### 0.9.3

- Date: 2021-09-02
- Version: 0.9.3
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9.3
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9.3

* Fix macOS right modifier detection (Nadia)
* Fill most gaps in ROMList (Arisotura)
* Fix touchscreen code in non-hybrid layout mode (Arisotura)
* GBACart: simulate open-bus decay roughly (Arisotura)
* Frontend: handle tablet and touch events (Generic aka RSDuck)
* Implement NO$GBA debug registers (BlueTheDuck)
* Make Setup Cheats option reappear on macOS (Nadia)
* Add frame step hotkey (Yukitty, additional fixes by Gal20)
* Add DSP code (PoroCYon, purringChaos)
* Save window state (Arisotura)
* JIT optimisations and fixes (Generic aka RSDuck)
* Add ROM info dialog (Rayyan)
* Allow using DSi footer within NAND images (MightyMax)
* More accurate NWRAM implementation (MightyMax)
* Only open microphone if necessary (Arisotura)
* Fix undo load savestate loading (Generic aka RSDuck)
* Fix pause when inactive (Generic aka RSDuck)
* Add audio interpolation (Arisotura)
* Add SOUNDBIAS and optional 10bit audio (Nadia)
* Patch touchscreen calibration data in DSi mode (Arisotura)
* Add DSi title manager (Arisotura)
* Fix threaded rasteriser deadlock when VCount is moved (Generic aka RSDuck)
* Add preliminary DSi-mode direct boot (MightyMax, Arisotura)
* More accurate DMA timings (Arisotura)

### 0.9.2

- Date: 2021-04-26
- Version: 0.9.2
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9.2
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9.2

* fix JIT on ARM Macs
* add proper Mac builds
* GX: optimize single-param commands
* add recent-files menu (abcdjdj)
* add support for loading files from archives
* fix JIT bugs
* fix wifi bugs
* improve performance of save-memory writeback
* add hotkey for swapping screens
* 3D/GL: attempt fixing various bugs
* fix OpenGL scaling on hiDPI displays
* rework GPU2D for easier integration of full GL rendering
* rework NDSCart and GBACart to make it easier to implement new cart types
* add support for NAND save memory (WarioWare DIY, Jam with the Band)
* fix bugs in DSi I2C and SD/MMC interfaces
* new screen modes

### 0.9.1

- Date: 2020-12-25
- Version: 0.9.1
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9.1
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9.1

* add fullscreen hotkey
* remove hardcoded F11-debug key (oops)
* fix some gaps in the IO handlers
* add ability to run unlaunch'd DSi NANDs
* add preliminary camera support (feeds fixed stripe pattern)
* fix potential bugs with tight timers (fixes ZXDS)
* SPU: small optimization to the mixer
* better framerate limiter
* fix several JIT issues
* GPU: lay bases for EVIL PLANS
* GPU: emulate separate scroll register for 3D layer scrolling
* some corrections to the ROM savetype list
* a bunch of misc fixes, as usual

### 0.9

- Date: 2020-09-06
- Version: 0.9
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.9
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.9

* merge in experimental DSi support
* 2D: delay palette lookup for sprites
* 2D: some attempts at fixing mosaic
* CP15: only update PU regions when actually needed
* 2D: fix sprite Y-flip
* 3D/GL: fix transparency bugs
* add warning against hacked firmwares
* fix libpcap bug (i404788)
* better file handling code (Nadia)
* GBA slot and solar sensor support (rzumer)
* add support for AR cheat codes
* fix handling of ROMs with encrypted secure area
* 3D: change clipping to be closer to hardware
* 3D: implement DISP_1DOT_DEPTH
* 3D: more accurate viewport transform
* build fixes (Nadia)
* add JIT recompiler (RSDuck)
* new Qt UI
* SPU: only start channels when they can actually run
* 2D: allow writes to DISPCNT/masterbright/capture/dispFIFO regardless of POWCNT
* SPU: don't process channels with len<4
* 3D/GL: cleaner polygon generation code
* 3D/GL: add attempt at reducing warping on quads/etc
* 3D: add missing variables to savestates
* wifi: avoid potential out-of-bounds writes with invalid RX buffer setups
* 3D/GL: fix issues with framebuffer handling
* make MAC randomization optional
* make software renderer the default
* add basic DLDI

### 0.8.3

- Date: 2019-09-04
- Version: 0.8.3
- Original notes: https://github.com/melonDS-emu/melonDS/releases/tag/0.8.3
- Permalink: https://whatsnew.fyi/product/melonds/releases/0.8.3

* fix ARM 'shift by register' operands (fixes Mario Party DS 'Stick and Spin' minigame)
* remove glBindImageTexture() (not needed and requires GL 4.2)
* fix input bugs when using Ctrl/Alt/Shift keys for buttons
* fix possible crashes when exiting (again. heh)
* 2D: support forcedblank+masterbrightness
* 2D: fill gaps in implementation (mode6 on sub GPU, mode7, 'prohibited' modes/sizes for OBJ and largeBG)
* build fixes
* fix division edge case (xperia64)
* new FPS limiter, audio sync, vsync for OpenGL
* add warning message if romlist.bin is not found (Zettymaster)