The document foundation released another update LibreOffice 4.4.5 which contains 80+ bug fixes over the previous release. LibreOffice is one of the most popular Office app that is also very active. Regular releases makes it more stable and feature-rich. According to the team LibreOffice 4.4.5 replaces LibreOffice 4.3.7 as "still" version for more conservative users and enterprise deployment. Install this update in Ubuntu/Linux Mint or other derivatives to get bug fixes.
LibreOffice 4.4 has so many new features and the fix releases like this one are making it more stable. If you are using previous version of LibreOffice then you should upgrade to LibreOffice 4.4.5 for better experience.
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How To Update To LibreOffice 4.4.5 In Ubuntu/Linux Mint Or Other Derivatives
If you have no any previous version of LibreOffice then you can download LibreOffice .deb from the download page and open it with Software Center or gdebi and click install.
In case you have already installed any previous LibreOffice version then do the following -
$ sudo add-apt-repository -y ppa:libreoffice/ppa
2. Now update the system through software updater
Or update system through terminal commands -
$ sudo apt-get update
$ sudo apt-get dist-upgrade
Congratulation! You have successfully update to LibreOffice 4.4.5. Enjoy!