New support for the Content Management Interoperability Services (CMIS) protocol, on the other hand, will make it easier to access documents stored in systems including Alfresco, Nuxeo, and SharePoint, the project team says.
4. Thunderbird integration
For users of Debian and Ubuntu Linux, a new Mork driver implementation will offer access to the address book in Mozilla's Thunderbird email software. "This means that Debian/Ubuntu users can finally integrate LO with their Thunderbird address book," the release notes explain.
5. A filter for Publisher
Then there's the new import filter for Microsoft Publisher files, allowing them to appear in LibreOffice much the way they do in Publisher. LibreOffice 4.0 also now supports all existing Visio file formats, from Visio 1.0--released in 1992--through Microsoft Visio 2013, which was released last year.
6. Faster performance
Last but not least, loading and saving multiple types of files has been sped up considerably in LibreOffice 4.0, including those in .ods and .rtf formats.
There are also myriad improvements in each of LibreOffice's individual components as well as countless bug fixes. This first release candidate is not intended for production use, of course, but if you want to check it out, it's available as a free download from the project site.