If you are on a pre-1.4.0 version, please read the
update notes before upgrading.
Changes:
Adds the possibility to select a range of pages when using the /deletebookpage command.
Adds a new option to limit usage of the /bwbTitlePage, /bwbDeletePage, /bwbAuthor, /bwbTitle and /bwbLore commands to a book's author, which is enabled by default. This change is mostly to allow these rather powerful commands to be used by normal players without so much risk of abuse. Note that old books (pre-1.4.0) don't have a persistent author id, so changing the author name can make player lose ownership of the book.