The customary announcement message for completeness, though the /news section is really the current place for them.
Code:
What's new in 1.16.1
====================
- Move RetroAchievements to the Tools tab in settings ([#18127])
- Fix graphics regressions in Hot Shots Golf 2 / Everybody's Golf 2 and Final Fantasy Tactics ([#18142])
- Fix hang when switching UMD with RetroAchievements enabled ([#18143])
- Fix hang on startup with OpenGL, that happened often if "buffer commands" was set to off.
- Fix problem with the sc instruction that broke Beats ([#18133], [#18140])
- Fix problem with the chat window accidentally closing on typing X ([#18135])
- Fix some crashes, add some asserts and reporting hooks ([#18129])
- Fix some text rendering in the software renderer ([#18126])
What's new in 1.16
==================
Special thanks to unknownbrackets for the new JIT compilers, and fp64 for finally cracking the vrnd instruction.
- RetroAchievements support ([#17589], [#17631], many more). See [RetroAchievements on ppsspp.org](https://www.ppsspp.org/docs/reference/retro-achievements).
- New JIT backends:
- RISC-V, based on IR
- x86 JIT based on IR. Often faster than the existing one.
- Input fixes
- Improve behavior when analog and digital inputs clash ([#17960])
- Combo mapping is now disabled by default ([#17673])
- Android: Better tracking of devices names ([#17562], auto config)
- Fix mapping custom touch buttons to analog inputs ([#17433])
- Rendering performance and fixes
- Fix flicker in WWE Smackdown vs Raw 2006 ([#18009]), video flicker in Naruto 2 ([#18008])
- Fix bad colors in Syphon Filter: Logan's Shadow menu ([#17965])
- On lower-end devices, avoid "uber" shaders due to performance and driver bugs ([#17449], [#17922])
- Allow disabling V-sync on Android with Vulkan, more SDL platforms ([#17903], [#18087])
- On Vulkan, reduce input lag when "Buffer graphics commands" is set to off ([#17831])
- Assorted minor perf ([#17810], [#17505], [#17478], [#17471], [#17452], [#17446], [#17442])
- Fix shadows in MotorStorm ([#17602]) (not actually a rendering problem)
- Fix rendering issue in Lunar Silver Star ([#17451])
- Add a cache for MakePixelsTexture, improving perf in God of War ([#17534])
- Lots of software renderer improvements ([#17571], [#17569], [#17619], [#17621], [#17618], [#17609], ...)
- Networking
- HTTPS support now enabled in store and for RA on Windows, Android, Mac, iOS ([#17744], ...)
- Ad-hoc: Fix for Metal Gear Acid issue with Link Battle ([#17947])
- Texture replacement fixes
- Fix Tactics Ogre texture issues ([#18001], [#18011])
- Fix problem with anisotropic filtering ([#17930])
- Fix glitches on D3D11 with KTX2 textures ([#17749])
- UI changes
- Color emoji support on some platforms ([#17854], [#17856])
- Use TTF fonts on SDL where available (macOS, Linux/Steam Deck) ([#17844]), support HiDPI ([#17651])
- Allow setting the PSP's MAC address directly ([#17755])
- Better looking notifications ([#17606], [#17674], [#17672])
- Cheats
- Fix loading cheat dbs on Android devices with scoped storage ([#17834])
- VR (Quest, other Android VR devices)
- Cinema screen mode improvements ([#17704], [#17752])
- Quest-only passthrough mode ([#17591])
- Cleanups, compatibility fixes, make VR settings per-game ([#17636], [#17656], [#17598], [#17518])
- Other
- Fix horrible audio glitch in After Burner ([#18076])
- Emulate the vrnd instruction accurately ([#17506], [#17549])
- Fix timing issue causing slowdowns in MLB games ([#17676], [#17677])
- UWP keyboard support, many other updates ([#17952], [#17974])
- Allow choosing the display resolution on Android again ([#17473])
- Fix issue running some file types out of the Download folder on Android ([#17466])
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