The new beta version improves usability of JabRef and includes patches from the community. For instance, we added support for specifying a BibTeX file at
--importToOpen. This allows a usage in browsers to directly append downloaded entries to the currently opened database.
Writing of a .bib file has been changed to gain a more human-readable bibtex file. The behavior can be adapted at Options->Preferences->File->"File saving options".
The timestamp field can be configured to be updated at each change of the entry. Activate it at Options->Preferences->General->"Update timestamp on modification"
A first shot for a Spanish translation is included. Feel free to provide feedback.
The full release history is available at http://jabref.sourceforge.net/revisionhistory.php#v2.10b .