I'm uploading beta 11 of Jaxen 1.1 as I type this. Jaxen is an open source (modified BSD license) XPath 1.0 engine for Java that is adaptable to many different object models including XOM, JDOM, DOM, and dom4j. Jaxen was originally written by James Strachan and Bob McWhirter. The primary impetus for beta 11 was fixing the build process so it once again generates source bundles. A couple of small, almost cosmetic, bugs were also fixed. If you haven't noticed any problems with beta 10, you can safely skip this iteration.
However, do not be fooled by the "beta" designation. This release has many fewer bugs and is much more conformant to the XPath specification than the official 1.0 release. I hope to release 1.1 final toward the end of the year after closing a few more bugs. However, there's no need to wait for that. If you're using Jaxen 1.0, you should upgrade to this beta.