As usual, a ton of fixes and improvements:
A major rework of sceAtrac audio decoding, fixing various music hangs and similar issues
Many fixes and workarounds to depth and stencil buffer usage, and also FBO management
Audio reverb support
Combo keys - custom touch buttons that press multiple PSP buttons
5xBR upscaling on GPU (postprocessing effect)
Fix problems with playback of video with mono audio
Performance improvements like multithreaded audio mixing
ARM64 JIT crash bug fixes
GLSL shader cache to reduce stuttering ingame
Support render-to-CLUT functionality that some games use to change colors of various monsters
x86-64 support on Android
Auto-hide on-screen controls after a while of no usage
Fixes to prescale UV speedhack, now seems reliable
Faster ISO RAM cache
New UI for moving around the PSP display on larger screens
Minor UI fixes like better slider controls
Assorted stability fixes (ffmpeg crash, etc)
Volume setting is back
Preparations for supporting more graphics APIs
AdHoc port offset
Support another HD remaster (Sora no Kiseki Kai HD)
