LibreOffice 3.5.4 is now available for download.
Windows binaries are digitally signed by The Document Foundation.
For Windows users that have LibreOffice prior to version 3.4.5 installed, either uninstall that beforehand or upgrade to 3.4.5.
For Windows users that have OpenOffice.org installed, uninstalling that beforehand, because it registers the same file type associations.
If you run Windows 2000, you may require this update before being able to install LibreOffice.
If you run Linux, the GCJ Java variant has known issues with LibreOffice, use OpenJDK instead.
LibreOffice contains all the security fixes from OpenOffice.org in 3.3.0, and perhaps more as a side-effect of the code clean-ups.
Microsoft Office 2010 will complain that ODF 1.2 and extended documents written by LibreOffice 3.5 are invalid (but opens them still). This is a shortcoming in MSO2010 only supporting ODF 1.1,