LibreOffice 3.6.5, the latest release for 3.x branch has been officially released by The Document Foundation. This release fixed like 50 bugs mentioned on their Release Notes.
Since it's a maintenance release, no new feature are neing implemented. Those new features will be implemented in the next major release of LibreOffice, LibreOffice 4.0, which is now being developed and planned to be released in early February.
We still don't have LibreOffice package for Slackware as Eric is still regaining his strength again, but i believe he will make the package soon enough after he has recovered.
For those who wanted a stable application should stick to LibreOffice 3.6.5 and for those who wanted to try new features, you can start migrating to LibreOffice 4.0 when it's released. Enterprise users are suggested to wait until LibreOffice 4.0.2 before attempting to migrate to version 4.0.
Update : Eric has recovered, and uploaded his build of LibreOffice. Go get them on the usuall repository