tried,
sudo add-apt-repository ppa:libreoffice/libreoffice-4-4
but cannot add PPA: ‘ppa:~libreoffice/ubuntu/libreoffice-4-4’. The team named ‘~libreoffice’ has no PPA named ‘ubuntu/libreoffice-4-4’
tried,
sudo add-apt-repository ppa:libreoffice/libreoffice-4-4
but cannot add PPA: ‘ppa:~libreoffice/ubuntu/libreoffice-4-4’. The team named ‘~libreoffice’ has no PPA named ‘ubuntu/libreoffice-4-4’
You tried to add non-existing PPA. sudo add-apt-repository ppa:libreoffice/libreoffice-prereleases
EDIT: There is 4.4.0 beta 2.1: sudo add-apt-repository ppa:libreoffice/libreoffice-prereleases
, which possibly is same as 4.4.0 RC1.
LO Fresh 4.3.5: sudo add-apt-repository ppa:libreoffice
sudo add-apt-repository ppa:libreoffice/libreoffice-4-4 works now