As always, you can grab the source and binary packages on this mirror sites:
Reminder to all of you who also have my KDE 5 packages installed: do not use the updated harfbuzz from my ‘ktown‘ repository because it will break LibreOffice. If you are using Mario’s slackpkg+ extension to slackpkg then you can configure it so that Slackware’s own harfbuzz package is preferred over the version which accompanies my KDE 5 packages. See this LQ thread for the details.You can also use LibreOffice from SBo repository along with it's helppack and langpack which uses a different ways of creating the binary output. It uses RPM binaries from upstream developers, while Eric build it from source.