Azahar 2126.1 Alpha 1 is released. An open-source 3DS emulator project based on Citra.

Azahar changelog:
All
Save states are now locked to the version of Azahar that they were created with. | @PabloMK7 #2394
Attempting to load a save state from a different Azahar version will now display an error message explaining this restriction, and will also display the version of Azahar that the save state was originally created with, recommending temporarily downgrading to retrieve progress using the in-game save functionality if necessary.
This does not limit save state usage compared to previous behaviour. Before this change, loading a save state from a previous version of Azahar would just crash the emulator. This change now gracefully shows a message instead.
Fixed an issue where it was possible for texture surfaces to be deleted while in use, especially at larger internal resolution settings. | @Wunkolo #2407
This change fixes Vulkan related crashes in many different games and situations. Most notably, when starting missions in Monster Hunter 4 Ultimate.
The highest available internal resolution scaling setting has been increased from 10x (4000x2400) to 18x (7200x4320). | @72374 #1906
Implemented a fix for a crash in Teenage Mutant Ninja Turtles: Danger of the Ooze when using the Vulkan renderer due to inaccurate handling of the rasterizer cull mode being set to an unusual value. | @PabloMK7 #2396
Fixed an issue which caused excessive lag in the character select screen for Super Smash Bros 4. | @PabloMK7 #2412
Fixed an issue which caused excessive lag in Mini Mario & Friends: Amiibo Challenge when walking on diagonal surfaces. | @PabloMK7 #2412
Fixed a regression which caused the 3DS friends menu to crash when opened. | @PabloMK7 #2412
Implemented optimizations to GPU command list processing which save 0.5-1ms of processing time per frame on average. | @PabloMK7 #2318
Implement geometry shader output register banking, which fixes a lot of SEGA 3D Classics games without the need of per-game patches. | @PabloMK7 #2338
The mentioned games still present other rendering issues that need to be fixed in future versions of the emulator.
Fix floating point denormal accuracy, which fixes various rendering issues in several games. | @Wunkolo #2350
Fixed an issue where the 3DS Internet Browser would freeze due to incorrect core rescheduling behaviour. | @PabloMK7 #2370
Implemented an improvement to emulated audio handling which fixes crackling sounds which an audio source's volume is changed. @Grayforz2468 #2409
Most notable example is the Home Menu no longer having crackling music.
Fixed an issue in the Vulkan renderer related to the handling of disabled cubemap texture units. | @Wunkolo #2406
This brings over a fix which was previously applied to the OpenGL renderer in a previous update.
Fixed an invalid memory access issue related to uds beacons. May fix undiscovered issues in certain multiplayer games. | @PabloMK7 #2403
Windows (MXE)
Fixed crash which could occur when trying to launch any app with the Vulkan renderer while using the MXE build. | @OpenSauce04 #2392
Fixed an issue where frame pacing could be inconsistent when using the MXE build. | @OpenSauce04 #2392
Desktop
The minimum motion control sensitivity value has been reduced from 0.01 to 0.001. | @ParadiseOfMagic #2383
Linux
Implemented a measure to help avoid having a missing application icon with certain desktop environment setups. | @Kyuyrii #1727
Android
Upgraded target Android SDK from Android 15 (35) to Android 17 (37). | @OpenSauce04 #2416
Fixed various edge-case crashes related to surface handling which could occur at game boot, during screen rotation, during app suspension, or during save state loading. | @PabloMK7 #2425
Fixed an issue where debug builds of Azahar on Android would instantly crash due to a logic error relating to configuration validation. | @PabloMK7 #2398
Fixed an issue where, if a 3DS application closed itself or encountered a fatal error and the user selected "Abort", the emulator would crash instead of returning to the application menu. | @PabloMK7 #2399
macOS
Enabled Liquid Glass interface elements on macOS 26. | @OpenSauce04 #2429
Fixed an issue when using macOS 27 where connecting to local network devices such as a real 3DS would always fail (e.g. Artic Base, system files setup). | @OpenSauce04 #2428
libretro
"Stereoscopic 3D Mode" and "Stereoscopic 3D Depth" settings are now available for the libretro core. | @XenuIsWatching #2339
Technical
The MXE build is now compiled using an LLVM+Clang based build environment, replacing the previous GCC-based stack. | @OpenSauce04 #2392
Huge thanks to @kleisauke, who for about a year and a half has been thanklessly maintaining an unofficial LLVM MXE plugin in a GitHub repository with only a single star. Without their work, making this happen would have taken much longer than it did.
Added copyright years to all source code license headers. | @PabloMK7 #2415
Implemented a workaround for a current compiler bug in MSVC. | @PabloMK7 #2410
Added a new CMake option CITRA_ADDRESS_SANITIZE. | @PabloMK7 #2402

Download: Azahar 2126.1 Alpha 1 x64 Download: Azahar 2126.1 Alpha 1 Android
Source: Here