"While a few delays were experienced by the Red Hat engineers and
community working on Fedora 11 (a.k.a. Leonidas), the first alpha
release of this popular Linux distribution is now available. The 11th
release of Fedora will bring a huge set of new features and updated
packages, with much of the work already being visible in Fedora 11
Alpha." "Starting with the installation, Fedora 11 is now using the EXT4
file-system by default but there is support built into the Anaconda
installer for Btrfs, which recently entered the mainline Linux kernel."