Although this is an old question, it should be noted that this is now possible, with iBooks Author 2: you add Version Info as described in this link: http://support.apple.com/kb/ht5213
不，这不是一个选项 - 您可以更新您的图书（重新发布），但用户不会收到通知。另请考虑 ISBN 下的付费出版物可能会成为新 ISBN 的主题。 参见例如： iBooks 作者正在更新您的图书吗？
Peter
no, that's not an option - you could update your book (republish) but user won't be notified. Also consider that paid publications under ISBN could be subject of new ISBN. See e.g.: iBooks Author updating your book?
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虽然这是一个老问题，但应该注意的是，现在使用 iBooks Author 2 可以做到这一点：您可以按照此链接中的说明添加版本信息：
Although this is an old question, it should be noted that this is now possible, with iBooks Author 2: you add Version Info as described in this link: http://support.apple.com/kb/ht5213
不，这不是一个选项 - 您可以更新您的图书（重新发布），但用户不会收到通知。另请考虑 ISBN 下的付费出版物可能会成为新 ISBN 的主题。
参见例如：
iBooks 作者正在更新您的图书吗？
Peter
no, that's not an option - you could update your book (republish) but user won't be notified. Also consider that paid publications under ISBN could be subject of new ISBN.
See e.g.:
iBooks Author updating your book?
Peter