I am using Ubuntu 13.10. Is there a way to update LibreOffice? I don't mean remove this version and do a fresh install of a new version! I don't want to waste my internet. I want to just update it.
You may have to add the LibreOffice 5 PPA specifically. (For a different version, substitute a different number in for 5.0.)
sudo add-apt-repository PPA:libreoffice/libreoffice-5.0
Press Enter when prompted to add the repository as a source.
Then, you need to get the latest package lists, including the fresh ones from that source you just added, using...
sudo apt-get update
Then you can upgrade LibreOffice automatically.
sudo apt-get dist-upgrade
Hope that helps!