To use LibreOffice 5 on Ubuntu and keep it always up to date, all we need to do is add the PPA from the Terminal:
sudo add-apt-repository ppa:libreoffice/ppa
Then the packages will need to be reloaded:
sudo apt-get update Finally we will have to install the new package with:
sudo apt-get install libreoffice
Now we will have LibreOffice up to date.