Last week a new version of BartPE was released. Last time i've download BartPE, i think it was 3.1.4. So i talking about the improvments since 3.1.4 ;-)
Here are the main improvements:

Added items:
- pluginstarwind ( ISCSI target [server] Btk ;-) )
- plugindeepburner ( burning software )
- pe2usb.cmd: this installs BartPE to USB Flash Drive using setupldr from w2ksp1 with a ramdisk-bootstrap-loader.
- Added language autodetect

Removed items:
- Removed the firefox plugin, instead of this a new "ready to use" plugin has been created as a separate download. Check the PE Builder page for this.

Quelle:
http://nu2.nu/pebuilder/