2010 was a very difficult year for the blueMSX team, this for personal reasons.
We have however made some additions and improvements, but all is not ready for an official release. As these additions and improvements can interest some people, we have decided to release a beta version for Christmas !  

Remember : it’s a beta version, only the core of the emulator is updated and some bugs could appear.

Important : if you get audio problems with this beta, please deselect the option "Enable reverse playback" in the Options/General menu before booting a machine

What’s new ?
- added support for smooth rewind of emulation (check hotkey in shortcut editor)
- added support for ColecoVision Super Action Controller
- added support for ColecoVision Super Expansion Module hardware
- added support for ColecoVision Expansion Module #2 using mouse
- added support for Parallax ARC cartridge
- added support for stereo PSG in MSX machine configuration
- fixed critical bug that caused trainer and cheats to fail as well as memory writes in the debugger when any of the following languages were selected : Catalan – Chinese Simplified - Chinese Traditional – Dutch – Finnish - Russian
- fixed bug in handling of transparent sprites
- fixed ARTRAGs VDP command engine bug
- fixed ‘no frequency’ bug in SN76489 emulation
- fixed minor bug in Beer IDE emulation

You can find this beta here :

http://www.bluemsx.com/rel_download/blueMSX_2.8.3_beta.zip