via http://emu-russia.net/en/

Atari Jaguar emulator for Microsoft XBOX has been updated. Changes:
- Speed improvement thanks to having optimized the texture management (thanks to freakdave, madmab and weinerschnitzel!). This makes some games run a bit faster, and improves audio quality in other games.

- Some small improvements in the GUI (for example, now when you exit from a game, the GUI goes to that game in the rom list).
File: Download
News source: http://www.emuxtras.net