Looks like the 2007 edition is the one you want:
https://religion.fandom.com/wiki/Ariel_Toaff
Toaff's most recent book, Pasque di sangue. Ebrei d'Europa e omicidi rituali ("Passovers of Blood: The Jews of Europe and Ritual Murders"), was published in February 2007. ... Withdrawal from circulation
On February 14, 2007, Ariel Toaff said in a statement that he ordered the Italian publisher of his book to freeze distribution of his book so that he can "re-edit the passages which comprised the basis of the distortions and falsehoods that have been published in the media."
A week after its publication, Ariel Toaff withdrew the book from circulation, in order to "re-edit the passages which comprised the basis of the distortions and falsehoods that have been published in the media"
Second Edition (2008)
A revised, second edition of his work appeared in February, 2008. Toaff now concedes that the accusations of ritual murder, as a common Jewish practice, were entirely Christian fabrications,[18]. However, Toaff maintains that it is possible that some radical Jews may have actually killed on ritual purpose, or for resentment against Christian persecution [19].
which came first: the persecution or the ritual killing?
(post is archived)