This time, it's all about speed. The Vulkan backend has improved as is now the default where available, while the OpenGL backend has been properly multithreaded and now runs really fast on dual-core devices. Enjoy!

The Android release will be rolled out slowly over the next week to catch bugs. If you want it now now NOW then download the APK!

OpenGL backend now properly multithreaded, giving a good speed boost.
Various Vulkan performance improvements (like #10911) and memory allocation fixes.
GPU command interpreter performance improvements (#10658)
Various fixes for app switching and widgets (#10855) on Android
Bugfixes and some performance improvements in the ARM64 JIT compiler and IR interpreter
Shader cache enabled for Vulkan
Multiple iOS fixes, including JIT (#10465) and file browser (#10921).
Improved compatibility on Mac (#10113)
Texture replacement ID bugfix (note: some textures from 1.5.4 may become incompatible)
Adhoc multiplayer fixes (#8975)
Vulkan support on Linux/SDL (#10413)
Retroarch support

October 27, 2018: PPSSPP 1.7 - stability and bugfixes!
PPSSPP 1.7.x has a large number of compatibility and bugfixes, and if you've previously had problems with crashes or instability, hopefully you will see a big improvement.

The Android release will be rolled out slowly over the next week to catch bugs. If you want to get it early, the APK is available.

UPDATE: 1.7.1 includes some minor crash fixes and a savedata fix. 1.7.2-1.7.4 are just additional crashfixes. 1.7.5 fixes an Android issue.

Fix for insta-crash on Galaxy Note 9, some Xiaomi devices, and the new nVidia Shield (#11441)
Vertex range culling on most platforms, fixes DTM: Race Driver and similar (#11393)
Major speed boost in some Gundam and Earth Defense Force games (#10973)
Fix for issues with post processing shaders in GL 3+ (#11182)
Fixes to sound output switching on Windows (WASAPI) (#11438)
Detects DirectInput devices when running (#11461)
Simple Discord integration (#11307)
New debugging APIs (#10909)
Task switching made a lot more robust (fixes GPD XD problems) (#11447)
Texture decoding optimizations (#11350)
Tons and tons of miscellaneous bugfixes and compatibility fixes

March 14, 2019: PPSSPP 1.8 - bugfixes and more!
Rollout has started - if you're on Android you'll automatically be updated within a week.

PPSSPP 1.8.0 fixes several bugs and substantially improves compatibility with various hardware. Support for mobile PowerVR GPU in Vulkan has been added, fixing many instances of broken display. Here's a full list of major changes:

Avoid crash when starting PPSSPP due to bad AMD Vulkan drivers (#11802)
PowerVR Vulkan display corruption fixed (#11744, #11747)
Naruto Shippuden 3 hang fixed (#11780)
Fixes to various lighting bugs (#11567, #11574, #11577)
Fix control issue in Sonic Rivals and Rock Band (#11878, #11798, #11879)
Significant performance improvement in Earth Defense Force 2 (#11172)
Fix "real clock sync" setting (helps with latency for music games - #11813)
More speed in FF4 effects and other generated curves (#11425)
Support for resizing Vulkan on Linux (#11451)
Improved support for GLES on Linux/IoT (#11507, #11537, #11541, #11632, #11746, #11806, #11845)
Percentage based frameskipping (#11523)
DXT accuracy improved, fixing thick white line in Gran Turismo sky (#11530)
Fix Motorstorm freeze on non-Windows (#11618)
Faster block transfer in some games like Digimon Adventures (#11531, #11553, #11776)
Blending optimizations and improvements (#11543, #11620)
Improve D3D11 rendering issues (#11584)
Change default graphics backend to D3D11 or OpenGL (#11621, #11658)
Remove some outdated settings (#11665, #11666, #11667)
Fix remote disc streaming with ipv6 (#11689, #11700)
Vulkan: Workarounds for some driver bugs for 5xx series Qualcomm GPUs (#11691, #11694)
Fix some Qt port issues with recent performance improvements (#11720, #11807, #11808)
UWP Xbox One: fix X/Back button confusion (#11740)
Fix Formula 1 2006 timing issue (#11767)
Fixes and workarounds for some vertex range culling bugs that broke a few games (#11785, #11859), and disable it on older GPUs (#11712, #11773, #11787)
Android: Allow putting PSP storage on custom paths like SD cards (#11812)
Corrected vocp instruction, fixing models in Artdink games (#11822, #11835)

A list of the major changes:

Flicker fixed in God of War that appeared with newer drivers for Mali GPUs (#12224)
Improve performance of God of War on Vulkan (#12242), implement built-in GPU profiler (#12262, #12266)
Vertex range culling fixed on ARM Mali (#12227)
Started to improve VFPU precision, resulting so far in a fix for the long standing Tekken 6 leg shaking problem (#12217)
Fixed a VFPU precision snafu on ARM64, fixing disappearing officers in Warriors Orochi (#11299) and some problems in Tomb Raider (#11179).
Vulkan is the default again on Android versions newer than Pie
Fix various homebrew store issues
GPU pause signal handling fixed, fixing some hangs in Bleach and Armored Core games (#12160)
Audio sample rate conversion handling fixes (#12147)
Some Vulkan optimizations (pre-rotation (#12216), perf fix in Metal Gear Acid, etc)
Multiple fixes for the UWP build (#12036, others)
MP3 playback fixes (#12005)
Audio in Motorstorm: Arctic Edge fixed by returning errors correctly (#12121)
Audio glitches in Final Fantasy Tactics fixed (#9956)
Camera display in Invizimals fixed (#12278, #8521)
Added hotkeys for texture dump and replace (#11938)
Added Visual Studio 2019 support. Windows XP is no longer supported (#11995, others)
Fixes for video capture (#12069)
Added a separate sound volume for alternative speed (#12124)
Improved mouse control (Windows only) (#12173, #12176)
Support for installing texture packs and ISOs from zips (#12175)
Right analog support for touch controls (only used by patched games and some HD remasters) (#12182)
Android: Fix OpenSL initialization, possibly helps audio crackle a little. (#12333).
Fix graphics on Amazon Fire TV Stick 4K
Fixed strange vehicle behavior in MGS:PW (somehow) (#12342)
Ported to the Nintendo Switch by m4xw! Builds available on m4xw's Patreon.

-

Graphics and compatibility fixes (#12800, #12670, #12635, #12857, #12941, #11898, #12695, more)
Assorted minor performance improvements, game load speedup (#12462, #12652)
Screen inset (notch) support on Android (#12779)
Analog stick support for menu navigation (#12685)
Fixed audio glitches in SDL builds (#12916, #12920)
Support more languages in in-game dialogs (#12702). Croatian language added to PPSSPP.
Simple multiplayer chat (#12667)
More advanced postprocessing (multipass, parameters) (#12905, #12901)
Add PPSSPP-specific CWCheat (#12816, #12912)
Reintroduce Cardboard VR, allow more resolutions (#12449, #8714)
Fix some crashes (#12908, #12876)
Ghost in the Shell graphics fixed (JIT inaccuracy with inf*0) (#12519)
Mac build now supports Vulkan on top of MoltenVK (#12583)
Raspberry Pi 4 EGL crash fixed (#12474)
VSync now supported on all backends, frame duplication option added for 30 Hz games (#12659, #12602)
Camera supported on Windows, Linux and Mac (still no microphone though) (#12572, #12580, #12607)
Darkstalkers fixed and working through software rendering. SW rendering fixed on GLES 2.0 (#12443, #12898)
Hot Shots Golf slowdown and flicker on Vulkan fixed (#12873, #12746)
Pangya Golf crashes and hangs fixed (#12718)
Allow rebinding of right touch screen analog (#12486)
Add option to prevent mipmaps from being dumped (#12818)
Tilt control now have a base radius to help with deadzone (#12756)
Mappable auto rotating analog stick to pass some game checks (#12749)
Touch control position can now be snapped to a grid (#12517)
HiDPI retina display support (#12552)
Rapid-fire on touch control (#12601)
Toggle mute button (#12643)
Add option to resize game icons and more (#12646, #12637)
Frames in-flight now configurable to reduce input lag at the cost of speed (#12660)
Add toggle mode to combo button (#12623)
SDL mouse support, Qt menu upgrades (#12612, #12817)
Real support for chinese patched version of Hatsune Miku Project Diva Extend (#13007)
Some minor kernel module support (#13028, #12225, #13026, #13004, #13038, #13023)
Fixed fullscreen toggling with Vulkan in SDL builds (#11974)

PPSSPP 1.10.1 additionally fixes a few commonly seen crashes.

PPSSPP 1.10.2 fixes some camera-related crashes, and fixes centering on notched phones.

ixes further notch issues.

1.11.1/2 has some additional crash fixes. 1.11.3 fixes an on-screen keyboard rendering glitch.

Some of the improvements since 1.10:

Lots of minor bug fixes, crash fixes, and performance fixes and improvements.
New Browse... button to allow opening SD cards on Android 11
Countless AdHoc networking fixes by ANR2ME, for example Dragon Ball Shin Budokai, PowerStone, Bleach Heat The Soul 7, Kingdom Hearts, GTA: VCS and many more.
Graphics issue with car reflections fixed in Outrun, Dirt 2 (#13636, #13640, #13760)
Cut-off cards in Yu Gi Oh fixed (#7124).
Numerous fixes to the builtin fonts by nassau-tk
Added exception handler so PPSSPP stays alive if a game crashes (#11795/#13092)
Desktop: Support for multiple instance multiplayer (#13172, ...)
Workaround for rendering bugs with flat shading in iOS 14
Multiple fixes to the IR interpreter (#13897, ...)
UI: New fullscreen button on desktop platforms, optional navigation sounds (#13239)
Audio and multiple hangs fixes in UWP version (#13792, ...)
Partial microphone support (#12336, ...)
Workaround for wacky action mirroring bug in Hitman Reborn Battle Arena 2 (#13706, #13526)
Hardware texture upscaling for Vulkan, mipmap generation (#13235, #13514)
Added MMPX Vulkan texture upscaling shader (#13986)
Depth texturing support in Vulkan and D3D11 (#13262, #13556, ...)
Performance fix for Test Drive Unlimited (#13355, ...)
Allow rewind on mobile (#13866)
Added option to disable on-screen messages (#13695)
Added "Lower resolution for effects" on libretro (#13654)
Allow chaining multiple post-processing shaders (#12924)
Support for loading game-specific plugins (#13335)
Fixed Assassin's Creed: Bloodlines Save issue on Android (#12761)
Hanayaka Nari Wa ga Ichizoku: mono voices fixed (#5213)
Additional fixed games:
Namco Museum - Battle Collection, Vol 2 (#9523, #13297, #13298)
Dream Club Portable (graphics bugs, GL and Vulkan) (#6025)
Capcom Classic Collection Reloaded (stuck in return game) (#4671)
Xyanide Resurrection (freezing) (#8526)
Dissidia Final Fantasy Chinese (patched game, invalid address) (#13204)
Crazy Taxi (#13368)
Spiderman: Friend or Foe (#13969)
Downstream Panic (US) (New Game crash) (#13633)