It's a long awaited update for this emulator, guess what kind of updates it may have, well.. see it yourself. Changelong : Code: General/Core: bug: fix a ton of old, broken cpu opcodes and CP15 logic bug: return Z1 and Z2 from TSC (fixes some touch logic) bug: gba slot save type detection improved bug: handle unusual rom headers more correctly bug: dont confuse motion pack commands with save memory commands bug: make cheat system a little less flaky and add AR 1.54 support bug: fix nondeterministic backup memory behaviour while rerecording bug: correct emulation of register accesses of wrong size and during powerdown bug: rewrite --cflash-path emulation bug: rewrite IPC/GX FIFO, IRQ flag generation, and wait-for-IRQ logics bug: rewrite RTC calendar handling; now supports years > 2038 enh: auto-DLDI patching for homebrew enh: --gbaslot-rom=self mounts self.nds in slot2 enh: more realistic exception handling enh: piano controller emulation enh: modular slot-1 system for exact emulation of homebrew cards Graphics: bug: edge marking colors were wrong bug: handle some "invalid" vram configurations correctly bug: convert half of geometry engine to fixed point bug: fix sprite blend+fadein/fadeout bug: improve rasterizer shadows bug: fix main memory display DMA bug: fix some raster fx timing bugs enh: add a hack for improving some non-stencil shadows Windows: bug: misc fixes and improvements to gpu viewer tools bug: sub screen layer display toggling fixed bug: fixes and improvements to ram watch, ram search, cheats list bug: fix start-paused commandline bug: fix memory leaks when sound disabled bug: improve load average calculators and add arm7 load average enh: background input support enh: add vsync option enh: support more knobs on joysticks enh: import cheats from R4 database enh: add xinput rumble for 360 pads Linux/OSX: bug: crash less in recent roms list enh: Add horizontal screen layout and swap screen ability to gtk frontend (noodlebox) enh: Big improvement to joystick support, support complex configurations and multiple devices (noodlebox) Source : DeSmuMe official site - Download Though there are no OSX build yet, pretty sure that won't be too much of the problem.