Snes9x 1.63
General:
- Added a shortcut to change the backdrop color for sprite extraction.
- Fixed QuickSave 0-9 slot shortcuts not working.
- Allow "Address:byte" form for cheat inputs.
- Fixed ZIP files not being closed after patch search.
- Various memmap fixes to allow unofficial mappings.
- Added usage of ImGui to draw things on top of the screen instead of inside.

Win32:
- Fixed AVI not recording audio.
- Fixed framerate throttling in turbo mode (now works during AVI recording).
- Fixed interlaced output speed being double.
- Fixed command line arguments not working.
- Fixed WaveOut device name display for names longer than 31 characters.
- Fixed Bank /- hotkey saving.
- Added hotkeys for aspect ratio, cheat edit/search.
- Added multiselect for cheat edit dialog.

Gtk:
- Fixed config file location to never put files directly in $HOME and obey
  $XDG_CONFIG_HOME.
- Updated translations from JakeSmarter and StanleyKid-22.

Mac:
- Added a new cheat finder.
- Added MultiCart support back.
- Create a blank window when starting the program, so the global menu change
  doesn't go unnoticed.

Snes9x 1.62
- Fixed SA1 division with negative dividend again. (Atari2)
- Fixed timing on several instructions. (pi1541)
- MSU1 audio with no loop point will not repeat from start.
- Modernized some old memory-related code.
- Fixed a desynchronization in interlaced modes and reporting.
- Remove SA1 access to WRAM.
- Added second set of registers between S-DSP and S-SMP. Fixes
  PAL version of Virtual Bart.

Gtk   Windows:
- Added a Vulkan graphics output method. Similar to OpenGL, this
  can use libretro's slang shaders.
- Changed the automatic frame skip throttle to take place immediately
  before showing the frame, making VRR work better.
- Add menu item to clear recent files entries.
- Add fixed window size changes up to 10x.

Windows:
- Improved the shader parameters dialog with sliders and resize.
- Allow disabling adding registry entries. Deletes any existing
  entries when the option is disabled.

Gtk:
- Switched to CMake for build system. Removed meson.
- Fixed some keys not working with modifiers. (Gutawer)
- Removed graphics options most people won't understand or need.
- Improved wayland support. Handle fractional DPI properly.

- Restructured tile.cpp tile renderer from heavy macros into C  
  templates, significantly lowering compile time. (yoffy)
- MichaelBuckley provided a brand new MacOS port that is completely
  rewritten based on newer, supported APIs.
- Fixed an out-of-bound memory access in sound DSP. (Sour, byuu)
- Revert default SFX2 clock speed increase.
- Added a render position hack. Fixes glitches in several games.
- Allow an SRAM mapping up to 128KB.

Win32:
- Apply turbo mode volume when rewinding.
- Added menu entry to load oops files, and an option to confirm before
  saving or loading states.
- Fixed sound volume resetting when sound reinitializes.
- Added a save-state preview dialog.
- Added save banks for up to 100 states
- Added support for relative-style save slots
- Fixed blargg rf filter.
- Show command line options on -h and /?

Gtk:
- Added an option to show time. (taimoorgit)
- Use a submodule for glslang, because it doesn't guarantee API stability.
- Switched to GTK's C   interface, gtkmm3. This effectively drops
  GTK  2.0 support.
- Joysticks can now be hotplugged. (jraby)

Unix:
- Added audio output threading. (yoffy)
- Added screensaver prevention on joystick use. (greg-kennedy)
- Fix YUY2 conversion. (greg-kennedy)
- Add alsa output support. (cjacker)
- Add I420 conversion. (cjacker)

- Fixed subscreen blending with master brightness < 100%.
- Fixed NMI timing when toggling enable bit. Fixes Chou Aniki--hack removed.
- Reverted an IPL map optimization that misses a weird edge case that caused
  The Great Battle III to lock up.
- Clamp MSU1 addition to max amplitude instead of wrapping. Proper MSU1 tracks
  will not be affected by this.
- Save mipmap_input parameter with customized GLSL and slang shaders.
- Actually use mipmap_input parameter.
- Optimized subscreen math with help from Dwedit.
- Revert to measured APU clock speed instead of nominal speed. Fixes An
  American Tail.
- Fixed broken BPS patch support. (ArtiiP)
- Fixed MSU1 track restarting on load state.

Win32:
- Changed window flags to allow NVIDIA cards to auto-enable exclusive
  fullscreen mode in OpenGL.
- Added a hidden option "DWMSync" that allows OpenGL to sync to the window
  manager while in windowed or borderless windowed mode.
- The automatic frame skip option no longer limits to 59.94Hz.
- Fixed bad icon scaling.
- Added a hacks dialog to enable settings for older hacks to run.

libretro:
- Added ability to use Satellaview data in same directory as ROM.
- Fixed deviation from proper libretro spec.
- Added option to use the software NTSC filter. (stellarporter)

GTK:
- Added icons to the entries to clear binding assignments.
- Fixed overlap in xBRZ multithreading.
- Changed glFenceSync option to an OML_sync option that works better.
- Fixed accumulation of partial pixel data on mouse motion when we update the
  mouse position more than once per frame.
- Allow one key to be bound to many controller buttons on the same controller.
- Force menu and button icons.
- Add the view menu to right-click when SNES mouse isn't used.
- Remove unused status bar option.
- Startup background can be changed in snes9x.conf.
- Improved PortAudio driver.

Unix:
- Fixed sound output that broke with APU refactor.

- Count clock cycles to synchronize SA1 with S-CPU properly. Based mostly on
  work by Vitor Vilela.
- Only allow instant IRQ when toggling IRQ. Fixes WWF - Wrestlemania.
- Refactored APU output code to buffer less on the client side. Removed 8-bit,
  Mono, and Reverse Stereo options.
- Consistently handle interlacing when we skip frames.
- Changed APU clock to reflect nominal values for original hardware.
- Fix C4 square instruction regression.

Win32:
- Don't display Joypad 2 pressed keys if disabled.
- Add support for libretro ".slang" shaders to OpenGL driver.
- Removed glitch-prone DirectSound audio driver in favor of a generic Wave Out
  driver.
- Moved sound sync to drivers to be more reactive. This makes sound sync and
  dynamic resampling work more reliably.
- Cleaned up dialog boxes to be more consistently spaced.
- Fixed TVMode filter in Direct3D and OpenGL modes.
- Fixed an interaction slowdown with OpenGL and Blargg NTSC filters.

libretro:
- Fix multiline cheats.

GTK :
- Switch from autotools to Meson build system.
- Readd glFinish option as alternative to glFenceSync.
- Fix size fallthrough with xBRZ filter.
- Fix loading of key bindings with spaces in them and modifier keys used alone.
- Add support for libretro ".slang" shaders to OpenGL driver.
- Use a cleaner onscreen font.
- Trap errors to allow OpenGL <= 2.1 to run again.
- Break display settings up to make it easier to access hardware accel section.

Snes9x 1.58
- Move the LICENSE file to the base directory and use a stub
  in all the source files referring to it. 
- Adjust Chou Aniki timing hack.
- Use 1-based numbering when displaying pressed keys.
- Hide controller port if disabled when displaying keys.
- Fix movie playback.

 libretro:
- Fix interlaced modes when overscan crop is enabled.
- Allow overriding -flto. (orbea)

 GTK :
- Use shared snes_ntsc implementation.
- Remove extra LGPL licensing to avoid confusion.
- Don't translate config file entries. Fixes breakage on
  non-C languages.
- Fix issue where config file doesn't contain all configurable
  entries.
- Remove config options for Netplay, Joystick, and JMA. SDL 2.0
  is now mandatory.
- Updated gettext and removed intltool. update-po should now catch
  all translatable strings.
- If available, reduce input lag option will now use fences instead
  of glFinish to prevent hogging the CPU.
- Onscreen text can be variable width and will show up in some more
  cases now.

 Win32:
- Add audio device selection (XAudio2 only)

Snes9x 1.57
- Various seta010 emulation fixes.                          (kps501)
- Pass blargg OAM tests with proper write behavior.         (BearOso)
- Prevent interlacing in BG modes 1-4.                      (BearOso)
- Corrected IRQ and NMI emulation to allow more games to
  work properly.                                            (BearOso, OV2)
- Use 1 instead of 0 for initial PPU left window coordinate,
  fixing garbage in left column of pixels in some games.    (turhope)
- Added interpolation option hack for DSP.                  (kps501, mudlord,
                                                            BearOso)
- Added sprite-tile limit disabling hack.                   (Tatsuya79)
- Added libretro's fast snapshot support.                   (OV2)
- Add overclocking hack that increases IPC                  (retrotalker)
- Fix controller initialization issues preventing some games
  from using multitap.                                      (retrotalker)
- Proper write behavior for register $2122.                 (BearOso)
- Fix transparency issue with Star Fox asteroids.           (redguy, BearOso)
- Increase SuperFX speed to more accurately represent
  hardware, and fix bugs with Stunt Race FX and Yoshi's
  Island.                                                   (BearOso)
- Resize viewport on state load.                            (retrotalker)
- Many fixes to variables not saved or saved incorrectly in
  save states.                                              (Dwedit)
- Pass decimal tests in blargg's math test ROMs.            (BearOso)
- Remove memory leak in loadzip.cpp.                        (bonimy)
- Fix screen size not reverting when overscan is turned on
  then off mid-frame.                                       (BearOso)

 Win32:
- Include DirectDraw libraries and compile with DirectDraw
  support by default.                                       (OV2)
- Add a link to DirectX installer in error message displayed
  when the needed DirectX libraries can't be found.         (OV2)
- Save window position when exiting via menu                (OV2)
- Make custom ROM dialog resizable.                         (OV2)
- Fix various cheat dialog issues.                          (OV2)
- Remove d3d9x DLL dependency by using DirectXMath.         (OV2)
- Remove rarely-used HLSL shader option.                    (OV2)
- Add InitialSnapshotFilename support.                      (BearOso)
- Disable BG toggle keys by default.                        (BearOso)
- Proper centering and cropping for overscanned and
  regular height modes.                                     (OV2)
- Remove ability to disable the SNES's hires modes.         (OV2)
- Added a Super Famicom-style icon resource to the EXE.     (BearOso)

 MacOS:
- Partial support for new cheats format.                    (OV2)
- Fix MacOS build.                                          (marconett)
- Set default for new config options.                       (tmkk)
- Fix compilation on Mac OS Mojave                          (meepingsnesroms)

 libretro:
- Massive update of libretro code to latest downstream.     (fr500, kps501,
                                                            OV2, twinaphex,
                                                            BearOso,
                                                            hiddenasbestos,
                                                            m4xw, kxyxz,
                                                            claudiuslollarius)

 GTK :
- Use datarootdir instead of datadir on install.            (orbea)
- Fix --with-system-zip configure flag.                     (BearOso)
- Draw interlaced fields when ready.                        (BearOso)
- Initial Wayland support.                                  (remicalixte)
- Allow XV only in X11.                                     (BearOso)
- Add Wayland support via EGL.                              (BearOso)
- Significant rewrite of OpenGL driver to support newer
  standards. This won't work on cards < OpenGL ~1.5.        (BearOso)
- Changed frameskip option to speed throttling option with
  simpler, but more relevant methods of speed control.      (BearOso)
- Add support for relative-style save slots.                (ichigo-0, BearOso)
- Remove XML config file format in favor of one more like
  Win32. Make joystick bindings and more options human-
  readable and editable.                                    (BearOso)
- Try more device nodes when initializing OSS.              (BearOso)