The Scriblio beta version has been released.
Here's a description of Scriblio from the About Scriblio page:
Scriblio (formerly WPopac) is an award winning, free, open source CMS and OPAC with faceted searching and browsing features based on WordPress. Scriblio is a project of Plymouth State University, supported in part by the Andrew W. Mellon Foundation.
- Free and open source
- Represents bibliographic collections — library catalogs and such — in an easily searchable, highly remixable web-based format
- Leverages WordPress to offer rich content management features for all a library’s content
- Free and open source