Clearly Apple had received some feedback that deploying and managing apps on enterprise devices was going to be hampered due to the changes to iTunes. You’ll notice that the download page is specifically geared to business or enterprise users. You can download the software directly from Apple here. However, you will have access to all of the “old” features from iTunes and it will look the way it did before Apple implemented the big changes. Basically, if you do downgrade to iTunes 12.6.3 then you will be installing a version of iTunes that will be frozen in time forever. Apple has said they will not be supporting this version of iTunes at all in the future. iTunes 12.6.3 is actually a new release that keeps all of the old features of iTunes 12.6.2 but disables prompts to update to newer versions. Now, I guess I should point out that this isn’t a downgrade. Still, losing features doesn’t always sit well with people which is why Apple is allowing people to downgrade to iTunes 12.6.3. Apple keeps app information stored in the cloud now and it’s easy enough to install apps back onto your device if you upgrade or get a replacement device. This basically means that users have to manage some things like apps on their device rather than backing them up to iTunes like they used to be able to do prior to iTunes 12.7. A lot of the extra “clutter” in iTunes was done away with. Basically, they wanted iTunes to mainly focus on media like music and videos. First, some backstory… Apple decided to go ahead and try to streamline iTunes.

What is revert on itunes