LibreOffice v3.6 is scheduled for release very soon. It's past time to
work on updates to the books. This page summarises new features and
fixes.
https://www.libreoffice.org/download/3-6-new-features-and-fixes
If a chapter or book has not yet been updated to v3.5, you'll need to
check the page for v3.5 new features; in some cases (such as Writer)
these may be significant.
If a chapter or book has already been updated to v3.5, changes for
v3.6 may be relatively minor.
Please let the list know what chapter(s) you plan to work on. If you
need help to make sure you are starting from the latest available v3.4
or 3.5 file, please ask on the list. In general, just go to ODFAuthors
and look in the "Published" subfolders.
--Jean