LibrOffice 3.3.1 is the first update to the stable version of LibreOffice 3.3. It contains only safe code fixes and translation updates, and is considered safe for production use. This release is bit-for-bit identical to the 3.3.1 Release Candidate 2, so you don’t need upgrade if you have that version already.
This page gives you a rundown of the new features in this release of LibreOffice (version 3.3.1). Remember that you must remove OpenOffice before installing LibreOffice via PPA.
To install LibreOffice 3.3.1 in Ubuntu 11.04 Natty or 10.10 Maverick or 10.04 Lucid, open Terminal and run the following :
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice