I have released a free version of iNES-Windows 4.2, the oldest NES, Famicom, and DiskSystem emulator still in development. Since it is the first iNES-Windows release in three years, the change list is quite large and includes all the emulation-related changes made to iNES-Android over these years, and then some. I have also released iNES-Android 4.2.3 today. The main additions are the "immersive mode" support on KitKat+ devices and the French translation supplied by Sylvain St Amand.

iNES-Android Changes:

• Added immersive mode support for KitKat and newer.
  
• Autohiding title bar when "Hide Title Bar" enabled.
  
• You must start or finish your fling at the top to toggle title bar.
  
• Added French translation, thanks to Sylvain St Amand.
  

iNES-Windows Changes (long):

• Improved 6502 clock precision.
  
• Added support for 100+ undocumented 6502 instructions.
  
• Increased VBlank interrupt delay from 4 to 5 cycles (Kart Fighter).
  
• Added support for 40+ new memory mappers.
  
• Now rendering sound in 1ms increments. Percussion effects became much better.
  
• Now accurately emulating APU random noise generator.
  
• Fixed sound channels defaulting to melodic sound after reinitializing sound.
  
• Fixed APU register $400F emulation, optimized volume computation.
  
• Added light gun emulation (Duck Hunt, etc).
  
• Added support for paddle (Japanese Arkanoid) and PowerPad.
  
• iNES will now automatically load *.IPS, *.CHT, and *.PAL files.
  
• Added support for Pro Action Replay cheats.
  
• Added the Cheat Hunter tool to find your own cheats.
  
• Added functions for load and save GameGenie cheats.
  
• Added support for "wrapped" DiskSystem files that come with a 16-byte FDS header.
  
• Now resetting DiskSystem to floppy side A on startup.
  

Enjoy!