LibreOffice 4.0 Stable Version has been released and announcment by Document Foundation on February 7, 2013. It come with new feature, better look and more improvements. On this release LibreOffice 4.0 now compatible with Microsoft’s Rich Text Format (RTF) and DOCX file formats – the latter being the XML-based Word document format first introduced in Office 2007 and brings Unity appmenu support.

“LibreOffice 4.0 is the first release that reflects the objectives set by the community at the time of the announcement, in September 2010: a cleaner and leaner code base, an improved set of features, better interoperability, and a more diverse and inclusive ecosystem,” the Document Foundation’s Italo Vignoli wrote in a blog post on February 7, 2013.

What the highlights of LibreOffice 4.0:

Better interoperability with DOCX and RTF documents;

Possibility to import Microsoft Publisher documents;

Integration with several content and document management systems – including Alfresco, IBM FileNet P8, Microsoft Sharepoint 2010, Nuxeo, OpenText and others;

Writer: allow different header and footer on the first page without using a separate page style;

Introduction of the widget layout technique for dialog windows, which makes it easier to translate, resize and hide UI elements, reduces code complexity, and lays a foundation for a much improved user interface

Linux: GStreamer 1.0 support, and refactor existing Gstreamer code;

New templates manager;

PDF Import, the Presenter Console, and the Python Scripting Provider are no longer bundled extensions but core features;

Significant performance improvements when loading and saving many types of documents.

More detail about new feature Libreoffice 4.0 you can see at this page

How to Install LibreOffice 4.0 on Ubuntu 12.04/12.10 and Linux Mint

To install LibreOffice 4 on Ubuntu 12.04/12.10 and Linux Mint, you need to uninstall all LibreOffice previous versions. Run following command:

sudo apt-get remove --purge libreoffice-core sudo apt-get autoremove --purge

Download LibreOffice 4.0 Stable version package from LibreOffice download page:

Installer LibreOffice 4.0 32 Bit:

wget http://download.documentfoundation.org/libreoffice/stable/4.0.0/deb/x86/LibreOffice_4.0.0_Linux_x86_deb.tar.gz

Installer LibreOffice 4.0 64 Bit:

wget http://download.documentfoundation.org/libreoffice/stable/4.0.0/deb/x86_64/LibreOffice_4.0.0_Linux_x86-64_deb.tar.gz

Direct torrent link: LibreOffice 4 torrent 32 bit or LibreOffice 4 Torrent 64 bit

Extract and install LibreOffice 4.0 archieve

32 Bit:

tar -xvzf LibreOffice_4.0.0_Linux_x86_deb.tar.gz cd LibreOffice_4.0.0.3_Linux_x86_deb/DEBS/ sudo dpkg -i *.deb

Install the desktop integration tool:

cd desktop-integration/ sudo dpkg -i libreoffice4.0-debian-menus_4.0.0-103_all.deb

64 Bit:

tar -xvzf LibreOffice_4.0.0_Linux_x86-64_deb.tar.gz cd LibreOffice_4.0.0.3_Linux_x86-64_deb/DEBS/ sudo dpkg -i *.deb

Install the desktop integration tool:

cd desktop-integration/ sudo dpkg -i libreoffice4.0-debian-menus_4.0.0-103_all.deb