There's a version for Xbox v1.0-1.5 and one for Xbox v1.6/v1.6b. It's based on the debug bios, so developers can use it if they have the XDK installed, but the bios can be used as normal 'hacked bios' too: it will run all homebrew/retail code and it can boot-up to homebrew dash directly.

What's new/fixed (since kernel build 2004):
* Now also a version of Xbox v1.0-v1.5
* Added dashboards in the booting code. If XDK is installed, it will boot the XDK dash. If not, the new dash booting order is:
-E:dash2Gam.xbe
-C:evoxdash.xbe
-C:mxm.xbe

-C:nexgen.xbe
-C:avalaunch.xbe
-C:uix.xbe
-C:xboxdash.xbe
* Fixed code for Xcalibur videochip. Some games had encrypted video in PAL mode and black screen in NTSC
* Fixed problem that some retail games didn't boot
* If you press eject button during booting animation, bios will boot BFM bios located on E:biosbfmxboxrom.bin
* All eeprom keys, retail key and debug key are embeded in the bios. This is compatible with all xbox versions.
* LBA48 code removed because code was not compatible with the EvoX M8 LBA48
* Note: a HDD formated with XBpartitioner(info) is not compatible with this bios.

TESTS:
* Bios is tested successfully with all video encoders.
* Bios is tested successfully in PALI , PAL60 , NTSC/J and NTSC/U mode.
* Bios is tested successfully with Svideo cable.
* HDTV should work, but has not been tested.