The Fedora repository project has had several releases since its last mention here. See the full rundown on all the changes in 3.0 here, and find the release notes for 3.1, the latest release. A copy of the 3.1 source bundle is available too.
From freshmeat: "This is a significant release of Fedora that includes a complete repackaging as a proper Web application. A new installer application makes it easy to setup and run. It now uses Servlet Filters for authentication. The Fedora repository can also be configured to calculate and store checksums for content. The RDF-based Resource Index has been tuned for better performance. A new high-performing RDBMS-backed triplestore has been developed that can now be plugged into the RI."
Eric wrote to oss4lib-discuss: "This release of MyLibrary is incremental, but there still a number of noteworthy additions to the distribution: the software now encrypts users' cookies as they are sent from the server to the browser; Impersonate patron is fixed; there are statistical reports against the underlying database summarizing usage; the scripts distribution now includes a set of PHP scripts demonstrating how MyLibrary can participate in OAI (Open Archives Initiative) for sharing metadata. Similarly, the distribution also includes a Perl script for writing RDF files from the underlying database."
The Open Source Digital Library System (OSDLS, a.k.a. Powerful Yet TactfullyHelpful Electronic Arranger of Sources (PYTHEAS)) is a project to develop an open source next-generation library system. Current development includes a data model based on MARC and RDF expressed in XML. Links to the design draft and listserv details are at the OSDLS homepage.