The Document Foundation has just announced that the second Release Candidate for the new LibreOffice 4.4 branch has been made available and is now ready for testing.
A new LibreOffice RC is now available for download and the developers have made a number of important updates to the suite. The final version is getting closer and it should be here in a few weeks.
"The Linux and Mac packages can be installed in parallel to LibreOffice 4.3, but not run simultaneously - documents will be opened in the version you've started first," reads the changelog. The devs are also saying that the PPTX export has been improved, an OOXML error has been corrected, the WW8 filter has received some features, and numerous smaller fixes have been implemented.
If you have an Ubuntu system, you might be able to get the new version from this PPA. Just enter these commands in a terminal (root is needed):
sudo add-apt-repository ppa:libreoffice/libreoffice-prereleases
sudo apt-get update
sudo apt-get install libreoffice