• One single CFW image / install file for all the supported consoles.
• Fully working and clean source code (this means more frecuently updates)
• Added TV out video support
• Added console support XYC Q8 / SUP M3
• Added support for L2 and R2 buttons on Powkiddy V90
• Added support for secondary button (plus sign) on Powkiddy Q20 and Q90
• Added new first initial boot setup
• Added console variant auto-detection on first boot setup
• Added auto-expand storage for main partition on first boot setup
• Added USB data transfer support from PC via MTD protocol
• Added USB serial console support
• Added SD card custom icons for PC drives
• Added current CFW build version on boot screen
• Added option to disable battery warning
• Added support for 1bit consoles from software (no hardware mods required)
• Added option to configure internal clock (useful for time-based games)
• Added option to configure tearing effect fix
• Added support for IPK packages via OPKG library
• Added screen recording in background via ffmpeg (WIP)
• Added audio recording in background via arecord (silent mode)
• Added auto-start feature on main menu system GMenu2X
• Added per-app input mapping customization on main menu system GMenu2X
• Added new file system BTRFS that allows unsafe shutdown to prevent data corruption
• Added Joy-Map app to emulate connected gamepad inputs to keyboard mapping
• Added USB-Host script to connect external devices (e.g joystick)
• Added USB-MTD script to activate mass-storage (transfer files via USB OTG)
• Added USB-Serial Console script to communicate with you device via serial TTY
• Added USB-HID app to transform your handheld into external gamepad for connected PC
• Added experimental musl build CFW version
• Updated kernel to version 5.15 with BTRFS and USB support
• Updated u-boot to version 2020.07 with USB support
• Updated buildroot to version 2022.02.9 with GCC 9.x
• Updated main configuration files options (CFG files)
• Updated custom bash scripts methods to launch custom stuff
• Updated video backend engine to display splash screen or console logs from uboot
• Updated the entire GMenu2X menu front-end (previously GMenuNX)
• Updated customizable boot splash screen (BMP format)
• Increased DRAM clock speed to 174Mhz
• Fixed screen-tearing issue, enabled through TE-fix setting in GMenu2X (only for ST7789S displays)
• Fixed text overflow on GMenu2X file explorer when screenshot preview is enabled
• Fixed many other small bugs thanks to the core updates (kernel, u-boot, buildroot, etc...)

Get it here

EDIT:

Tested for just a few minutes:

• Can't figure out how to get simplemenu theme setup which is my favorite interface. (It could be made to work with the old cfw so I 'm sure it can be made to work with this one!)

• Adding data over usb-c is a HUGE upgrade for this thing since I could never add them to the SD card itself because my PC couldn't see the "main" drive folder without a bunch of fussing.

• I tested shutdown with poweroff switch multiple times and it just works perfectly. NO MORE SHITTY DISK CHECKS!

• I tested overclocking gpsp for GBA and it's pretty stable at 764mhz, quick crash over 800. I overclocked snes9x2002 to 764 and it is pretty stable as well. Still getting some audio crackles when playing roms on both of them unfortunately. I'm thinking of setting the CPU to default to 764mhz.

• WarioWare Inc. used to have messed up graphics in the intro which is now fixed.

• The emulators I'm trying aren't standalone anymore (or if they are there i don't know how to launch them) they are now cores in retroarch. This may actually be a slight negative because I believe they run a bit slower because of the overhead of running retroarch.

• .sav files show up in the roms list which is not preferred

2nd edit: Under the MUSL Version -- Sad to report default performance has been hindered by forcing everything to run under retroarch. Overclocking cannot resolve this for my v90. I'm guessing performance improvements are coming but I know under 1.3.3 sonic 3 (for example) ran smoothly on picodrive and now it does not. Will begin testing uclibc version.