mGBA v0.3.0 is released. mGBA is a new emulator for running Game Boy Advance games. It aims to be faster and more accurate than many existing Game Boy Advance emulators, as well as adding features that other emulators lack.

Features:
Near full Game Boy Advance hardware support[1].
Fast emulation. Known to run at full speed even on low end hardware, such as netbooks.
Qt and SDL ports for a heavy-weight and a light-weight frontend.
Save type detection, even for flash memory size[2].
Real-time clock support, even without configuration.
A built-in BIOS implementation, and ability to load external BIOS files.
Turbo/fast-forward support by holding Tab.
Frameskip, configurable up to 9.
Screenshot support.
9 savestate slots. Savestates are also viewable as screenshots.
Video and GIF recording.
Remappable controls for both keyboards and gamepads.
Loading from ZIP files.
IPS and UPS patch support.
Game debugging via a command-line interface (not available with Qt port) and GDB remote support.

mGBA v0.3.0 Changelog:
Features:
Ability to hide individual background layers, or OBJs
Ability to mute individual audio channels
Palette viewer and exporter
Volume control
More shortcuts are editable (e.g. quick save/load)
Rewind now shows the frame after rewinding
Import/Export of GameShark/Action Replay snapshots
Add “Step backwards” item for single increment rewind
Deadzone estimation for game controllers
Analog inputs can be used for shortcuts
Menu items for specific solar sensor brightness levels
Remappable controls for tilt and gyroscope sensors
Status messages for actions taken while a game is running (e.g. save/load state)
Memory inspector
Screensaver can now be suspended while a game is running
Load/save the most recent savestate slot
Support varible speed (PWM) rumble
Ability to cap fast forward speed
Finer control over FPS target
Holdable shortcut for rewinding one frame at a time
Ability to boot directly into the BIOS
Preliminary support for yanking out the game pak while a game is running
Thumb-drive mode by putting a file called portable.ini in the same folder
Configurable display driver, between software and OpenGL
Undo-able savestate loading and saving
Controller profiles now store shortcut settings
Default controller profiles for several common controllers
Libretro now supports BIOS, rumble and solar sensor
Implement BIOS call Stop, for sleep mode
Automatically load patches, if found
Improved video synchronization
Configurable audio output sample rate
Bugfixes:
ARM7: Fix SWI and IRQ timings
ARM7: Fix Thumb MUL timing
ARM7: Fix timing of multiplies to use N cycles
ARM7: ARMHotplugDetach should call deinit
Debugger: Fix use-after-free in breakpoint clearing code
GBA: Fix crash if a 512kb flash save is loaded when a game has a 1Mb flash override
GBA: Cap audio FIFO read size during deserialization
GBA: Check for corrupted savestates when loading
GBA: Check for improperly sized savestates when loading
GBA: Check for savestates made from differently sized ROMs
GBA: Fix calls to endian-independent loadstores
GBA: Fix timing of reading from timer registers
GBA: Ensure cycles never go negative
GBA Audio: Force audio FIFOs to 32-bit
GBA Audio: Fix audio pitch changing when adjusting buffer size
GBA Audio: Fix sample order in audio channel 3
GBA Audio: Fix 8-bit writes to audio channel 3 frequency
GBA Cheats: Fix Pro Action Replay and GameShark issues when used together
GBA Memory: Improve Thumb open bus behavior
GBA Memory: Fix potential DMA issue when loading a savestate
GBA Memory: Fix load/store multiple video memory waitstates
GBA SIO: Fix reseting when there are SIO devices attached
GBA Video: Blended sprites should never have other effects applied
GBA Video: Fix out-of-bounds tiles in mosaic
GBA Video: Fix windows not affecting sprites
GBA Video: Prevent tiles < 512 from being used in modes 3 – 5 GBA Video: Fix timing on first scanline Qt: Better cleanup when a game crashes Qt: Fix open ROM dialog filtering for archive formats Qt: Cap the maximum number of multiplayer windows Qt: Fix maximum year in sensor override Qt: Fix window being too tall after exiting fullscreen Qt: Fix a missing va_end call in the log handler lambda within the GameController constructor Qt: Fix analog buttons not getting unmapped Qt: Fix passing command line options Qt: Fix crashes on Windows by using using QMetaObject to do cross-thread calls SDL: Fix SDL build when OpenGL is missing Util: Allow loading IPS patches that grow the ROM VFS: Fix resource leaks if some allocations fail VFS: Fix line-reading to return proper values Video: Fix an issue with very long filenames Util: Fix formatting of floats Misc: All: Add –help flag for command line programs All: Fix sanitize-deb script to set file permissions properly if run as (fake)root All: Enable static linking for Windows All: Enable static linking for OS X All: Threads are now named All: Proper handling of Unicode file paths ARM7: Add emulation for Undefined CPU mode ARM7: Reduce the size of the Thumb instruction table GBA: Add status log level GBA: GBARewind now returns how many states it has rewound GBA: SIO logging layer GBA BIOS: Stub out SoundBias GBA: More accurate cycle estimation for ROM prefetch and flash save chips GBA: Don’t include GBACLIDebugger struct unless needed GBA: Savedata is now synced shortly after data finishes being written GBA: Process multiple timer events at once, if necessary GBA Audio: Implement audio reset for channels A/B GBA Audio: Process multiple audio events at once, if necessary GBA Hardware: Backport generic RTC source into core GBA Input: Allow axes and buttons to be mapped to the same key GBA Memory: Run multiple DMAs in a tight loop if they all occur before present GBA SIO: Add a dummy driver for Normal mode GBA Thread: Add functionality for running callbacks on the GBA thread GBA Thread: Split GBASync into a separate file GBA Video: Refactor software renderer into separate files GBA Video: Slightly optimize mode 0 mosaic rendering Debugger: Free watchpoints in addition to breakpoints Qt: Handle saving input settings better Qt: Move GL frame drawing back onto its own thread Qt: Fast forward (held) option moved from Other to Emulation menu Qt: Show version info in window title Qt: Migrate multiplayer window handling into GBAApp Qt: Unified file opening and saving with last location Qt: Fix windows being resizable when they shouldn’t have been Qt: Only hide cursor in full screen Qt: Replace pause-after-frame mutex with an atomic Qt: Add application icon and XDG desktop files Qt: Rename “Fullscreen” to “Toggle fullscreen” Qt: Don’t save window size when entering fullscreen Qt: Make the default fullscreen binding for Windows be Alt-Enter Qt: Gamepads can now have both buttons and analog axes mapped to the same key Qt: Increase usability of key mapper Qt: Show checkmark for window sizes Qt: Set window path to loaded ROM Perf: Ability to load savestates immediately on launch SDL: Properly check for initialization SDL: Clean up initialization functions SDL: Clean up GL context Util: Allow disabling the threading code entirely VFS: Add sync method to force syncing with backing Download: mGBA v0.3.0
Source: Here