Говорят, что оно стало пошустрее ;) а так же:
* Speed up the dynamic cpu core (certain games get much faster).
* Added a dynamic fpu on x86 hosts.
* Improved the cycle guessing code (and make it default).
* Better and more configurable joystick support.
* Improved the image and fat drives.
* Added nullmodem emulation.
* Various win 3.x enhanchments (video/audio/ems/win32s).
* Improved CDROM detection and support.
* Speed up the screen drawing code.
* Added support for different keyboard layouts.
* Various fixes to the (C/E/V)GA emulation.
* Extended and improved all types of emulated memory. (umb/ems/xms)
* Dynamic core should work on Intel Macs.
* Various timer related fixes.
* Added a few more graphic scalers.
