Controversy On Scrolls

How much about the scrolls do we currently know about? It says there are different versions, but doesn’t explain much. What does the book mean by different versions? I mean that as in are they different translations, different messages in general, or different ideas? It says later on that there were still sacrifices. When did people stop using animal sacrifices for God?
The Dead Sea Scrolls were controversial since they were first created, but the controversy increased dramatically in the late 80s and early 90s. The controversy can be traced in numeral publications, and even though some television documentaries. Much of the controversy is from the lack of reading the scrolls, because they still have yet to be published. Many books have claimed that the scrolls describe Christianity at its earlier, and that the founder was Jesus or John the Baptist. Some people have speculated that the Vatican was involved in covering up damaged information within the texts, although most scholars reject these speculations.
The scrolls were also delayed because a good deal of reconstruction is necessary due to the deterioration of the scrolls, and the original scholars who were entrusted passed them to their students and nobody else. Due to these factors, the scrolls were released slowly to the public, and why they are not available to the public. In 1991, the Huntington Library in California had photographs of the scrolls, and decided to release them to the public in 1991. This made it so there could be more of a discussion about their content to the