Compatibility:

• API support improvements:
  • Various small contributions. (@hikari-no-yume, @nitinseshadri, @LennyKappa, @RealSupremium)
  • Basic POSIX file I/O is now supported. Previously only standard C file I/O was supported. (@hikari-no-yume)
  • Very basic use of Audio Session Services is now supported. (@nitinseshadri)
  • Very basic use of MPMoviePlayerController is now supported. No actual video playback is implemented. (@hikari-no-yume)
• New supported app: Crash Bandicoot Nitro Kart 3D (version 1.0 only).

Quality and performance:

• The code that limits CPU use has reworked in an attempt to more effectively balance responsiveness and energy efficiency. Frame pacing should be more consistent and slowdowns should be less frequent. No obvious impact on energy use has been observed. (@hikari-no-yume)
• The emulated CPU can now access memory via a more direct, faster path. This can dramatically improve performance and reduce CPU/energy use, in some cases by as much as 25%. (@hikari-no-yume)
• Fixed missing gamma encoding/decoding when rendering text using UIStringDrawing. This was making the text in Super Monkey Ball's options menu look pretty ugly. (@hikari-no-yume)

Usability:

• .ipa files can now be opened directly, you don't need to extract the .app first. (@DCNick3)
• New command-line options --landscape-left and --landscape-right let you change the initial orientation of the device. (@hikari-no-yume)
• The app bundle or .ipa file no longer has to be the first command-line argument. (@hikari-no-yume)

Other:

• Some of the more spammy warning messages have been removed or condensed. (@hikari-no-yume)