Benjamin Pasero has posted version 0.9b of RSSOwl, an open source RSS reader written in Java and based on the SWT toolkit. This release can search a site for news feeds, improves PDF export, and can use Mozilla 1.7 as internal browser. It also fixes a number of user interface inconsistencies I reported.
Ranchero Software has posted a beta of NetNewsWire 2.0, a closed source RSS client for Mac OS X available in both free-beer lite and payware full versions. Version 2.0 removes the weblog editor and adds Atom support, flagged items, searching, news persistence, and an embedded browser.
JAPISoft has released JXP 1.3.3, a €139 payware XPath 1.0 API that can be customized to fit different object models. This release fixes bugs.
JAPISoft has also released FastParser 1.6.8, a $199 payware, non-validating, XML parser for Java that supports SAX and some of DOM. I'm very skeptical of this parser, and JAPISoft products in general. I notice that every other release they announce "new features" that are absolutely essential to any minimally conformant implementation of the technologies they claim to implement. It makes me wonder what's missing from the current version. Plus they are completely misusing the phrase "open source." These products are not available under an open source license, JAPISoft claims to the contrary not withstanding.
Kevin Howe has written a Ruby wrapper for HTML Tidy. It's distributed under the Ruby license.