As of 27th of July, the current stable version is 1.1.1, which supports kernels 2.2.18/19 and 2.4.2-7. Pre-version 1.1.2-pre9 has been released, and 1.1.2-final will certainly be available when this paper is presented.
The next major release 1.2.0 will contain a lot of changes, e.g the first
extension of the set of request types.