Third Release Candidate of of LibreOffice has been released. It’s available to download with different packages and for cross-platforms and many linux distributions.
Includes deb, RPM packages for Ubuntu, Fedora, Linux Mint, CentOS, OpenSUSE, and many other distribution support these packages, also you will find an option for downloading for different processor architecture x86, x64 bit processor.
LibreOffice Lauchpad PPA
You can install Libreoffice directly using PPA for Ubuntu 11.04 Natty, 10.10 Maverick, and 10.04 Lucid.
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice
LibreOffice 3.3 RC 3 Release Notes