While it is not an official Debian release, the Debian GNU/Hurd team has announced the release of Debian GNU/Hurd 2013. GNU Hurd is a Unix-style kernel based on the Mach microkernel and Debian GNU/Hurd makes much of the Debian system available atop that kernel.
Debian GNU/Hurd is currently available for the i386 architecture with more than 10.000 software packages available (more than 75% of the Debian archive, and more to come!).
Read more at LWN