A new version of the popular dreamer dreamcast emulator for windows has been released. But because the documentation is in spanish I have no clue what has been updated.
Here are the translated details of whats new:

“As Christmas present Mr. ElSemi has wanted to you to offer a new version of its emulator of Dreamcast for Windows. In order to know the new developments you puncture in CHANGES. Click HERE to see what’s new. We recommended to you that you enter the configuration page that we have prepared to you, so that you execute dreamer without no problem. Also we have put you programas(PONG, TEST3D, STARS DEMO and GLEAM) to be used directly with the emulator. The documentation is in Castilian and English. You need DIRECTX 8.0. Comentaros that you will need the previous version to make it work since this one is only one update. In the ” small package ” we have including new spatches.ini so that stars works demo ” demo ” with the Dreamer. Finally deciros that the increase of the speed has been very remarkable since in a Athlon 600 game PONG is past passed of 27-30 fps to 70-75 fps.”

You can pick it up on the dreamer page.