Normally when you install Ubuntu 14.04 and update everything what was possible you have LibreOffice (version for today). When you run Software Updater system will not find the newer version. So how to install LibreOffice 5.1 in Ubuntu? Just create a file:

Paste these lines and save the file (remember about root privileges):

Then open terminal again and run this command in order to add LibreOffice 5 ppa:

and launch Software Updater. You should see this:


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