After much testing, the final version of LibreOffice is now released for public consumption. For those who are looking to replace your OpenOffice with LibreOffice in Ubuntu, here is how you can do it.
Note: If you are not aware of LibreOffice, read more about it here.
1. Remove all instances of OpenOffice.
Open a terminal and type:
sudo apt-get autoremove openoffice.org-*
2. Install LibreOffice via PPA
sudo add-apt-repository ppa:libreoffice/ppa sudo apt-get update sudo apt-get install libreoffice
Note: The version listed in the PPA is still RC4, but it is exactly the same as the final version.
Those who are using Gnome can install the Gnome package for better backend integration
sudo apt-get install libreoffice-gnome
To enable PDF import capability:
sudo apt-get install libreoffice-pdfimport
To enable English spellcheck capability
sudo apt-get install language-support-en