Other

• Fix important (but mostly rare) crash bug affecting games that draw a lot (#21669)
• More plugin zip files can now auto-install (#21556)
• Pause on lost-focus on Linux (#21517)
• Frameskipping no longer breaks analog stick auto-rotation in GoW, however manual rotation still broken (#21508)
• Android: Restore "Landscape Auto" (#21482), the "Auto" screen rotation mode now overrides the user rotation lock (#21507)
• Contribution by lrzlin: Loongarch improvements (#21499, #21595)
• Basic support for extracting ISO from 7zip files (#21493)
• Fix a bug that prevented loading certain texture packs (#21491)
• Fix music looping in Death JR (#21490)
• Hide the save-load indicator in the corner by default (#21528)
• Fix crash in the remote debugger, by Nemoumbra (#21652)
• Fix screenshot cropping bug (#21665)
• mfplat.dll is no longer required on Windows unless you need camera/microphone (#21660)

Regression fixes

• In 7th Dragon, voice-related crashes are fixed (#20837)
• Soundtrack is working again in Tony Hawk's Project 8 (#20775)
• Fix crash in StormBasic homebrew apps (#20715)
• Built-in songs in Beats work again (#20662)
• Fix adhoc in Syphon Filter games (#20642)
• Fix strange cutscene speedups in Power Stone 2 (Power Stone Collection) (#2124)
• Work around game bug to help more custom songs play again in GTA LCS (#20692)

Multiplayer

• Support aemu relay servers for AdHoc multiplayer (#21116, #21271)

Controller and touch screen input

• Native support for DualSense (#20580, #20620, #21191), DualShock and Switch Pro (#20647) controllers on Windows - including tilt controls for DualSense and Switch Pro
• Misc touch screen and controller mapping improvements (#21195, #21197, #21258, #21325)
• Add simple virtual keyboard for text input for platforms that don't have one (#21306)

Graphics

• Fixed multiple graphical effects in Tales of Phantasia X
• Reworked the VSync setting to be more intuitive. It's now pretty much never a bad idea to turn it on.
• Fixes for various glitches in Tales of Phantasia X (#21173, #21141, #21205)
• Some more framebuffer readback workarounds (#20640, #20631, #20632)
• MMPX upscaling enhancements by crashGG (#20622, #20541)
• Huge rendering speedup in Brave Story (#21151)
• Fix rendering bug caused by CPU emulation bug in ATV Offroad Fury: Blazing Trails (#21238)
• Partially fix rendering problem in Mahjong Artifacts (#21244) and The Mystery of the Crystal Portal (#21236)
• Boost the GPU in Outrun 2006 to avoid unnecessary slowdowns (#21304)

Other game fixes

• Fix savedata problem in Silent Hill: Shattered Memories (#21294)

Audio

• Added "Smooth" playback mode, which evens out glitches (while adding a very small amount of latency)
• Remove DirectSound support (#20533), add support for ultra-low-latency streams on WASAPI, available on some devices (#20535)

Platform support

• Windows
  • D3D9 support has been removed (#19951, #20490)
  • ARM64 is now officially supported, and works great (#20863)
  • Correct fullscreen mode in Xbox Fullscreen Experience (#21189)
  • Assorted improvements (#20778, #20774)
• Android
  • The minimum Android version has been raised for technical reasons, KitKat is no longer supported (#19658)
  • Support for Android devices with 16KB page size. This is a technical change, required by Google Play, that unfortunately forced us to drop compatibility with the very oldest devices (Android < 5). (#20788)
  • Shortcut widgets can now be created even if the app isn't running (#20798)
  • Removed support for classic Moga controllers, these were only a thing on early Android (#20762)
• iOS
  • Add support for screen rotation
• Linux
  • Loongarch improvements by lrzlin (#20683, #20644) and KatyushaScarlet (#20599, #20594), text rendering improvements (#21163)
  • SDL fullscreen problems fixed (#21300, more)
• UWP
  • Migrate code base to C++/WinRT (#21100)

Debugger

• ImDebugger improvements (#20861, #20779, #20657, #20637, #20550, #20523)
• Websocket debugger fixes (#20749)

Other

• RetroAchievements: Upgrade the support library with perf fixes (#21081), various fixes and improvements
• Add workaround for infamous God of War crash (#21148)
• Fix assorted minor UI bugs (#21042, ...)

General emulation

• Allow disabling HLE on a per-module basis (if games ship the module so we can load it). Enabled for sceCcc (#20218), and more importantly scePsmf (#20208), fixing multiple issues.
• Additional module loading improvements (#20114)
• More precise sleep function on Windows (#20054)
• More replacement texture improvements, allow replacing game icons (#19975, #19978)
• Disable certain features like fast-forward when networking is on, to avoid de-syncs (#20311)
• Fixes mono Atrac3 as video soundtrack (#19800)
• Improvements to RISC-V support (#20352)

Control and input

• Touch gliding support added (#19983)
• Allow simultaneous DInput and XInput input (#20347)

New "Dear ImGui"-based PSP debugger: ImDebugger

• Allows very rapid development of debugging features as-needed, and also implements a pretty good Ge debugger for stepping through draws.
• Unlike the old Win32 debugger (but similar to the unmaintained web debugger), works on all platforms (though cumbersome on touchscreens)
• Major commits (though there are many more): (#20242, #20240, #20294)

Multiplayer

• Added Infrastructure multiplayer support, with automatic DNS configuration (#19865, #19869, #20221, #20220, #19875)
  • Note: Only games that people have made "revival servers" for will work. See here.
• Implement more of sceNet (prerequisite for the former feature).
• Socket re-mapping implemented (#19827)
• Assorted bugfixes, thanks ANR2ME (#20247, #20245, #19843, #19849, #19836)

UI

• Loading spinner now actually spins properly, the app no longer appears to hang (#20341)
• Minor features: Asks for confirmation on exit in most scenarios (#19996, #20023), DPI scaling (#20013), can pause without menu (#19883)
• As usual a lot of tweaks, perf fixes, and fixes for hangs and crashes (#20343, #20332, #20305, #20303, #20299, #20163, #20152, #20143, #20079, #20137, #20374)
• Two new color themes (#20334, #20335), related themability fixes (#19984, #19995, #20308)
• Improvements and bug fixes in the savedata manager (#19771, #20170)
• Add "Move to trash" deletion functionality to multiple platforms (#20230, #20261)
• Add ability to take "raw" screenshots of gameplay (#20029)
• More files can be loaded directly from ZIP (#20243)
• Developer Settings are now tabbed for easier access (#20228)
• Switch to the full libpng API so we can disable gamma correction, like the real PSP (#20033)
• Support displaying the battery percentage on more platforms (#19973, #19967)
• Allow picking a background image on iOS (#20370)

Platform compatibility

• Exclude older Macs from using Vulkan (too many black screens, hangs) (#20236)
• Use portable-file-dialogs to provide file-open dialogs on Linux (#20175)
• "Cache full ISO in RAM" is now correctly hidden where it doesn't work (#20165)
• Now rendering at proper resolution on newer Macs (#20011)
• Mouse input improved on Android, including separate button mapping (#19915)
• Use the correct font again on Mac/iOS (#19874)
• Multiple file access optimizations made to make the most out of the flawed foundation called Android Scoped Storage (#19668)