iTunes 12.6.3 brings back App, Ringtone support
After releasing iTunes 12.7 earlier this year, Apple made available a version that brings App and Ringtone management support back to iTunes. Although version 12.6.3 is meant primarily for Enterprise users, it can be installed by anyone. Both, Mac and PC installers are available.
Note, that the release was not publicly announced and the app is released without official Apple technical support. At this time, I have not seen any reports of unwanted side effects, or other limitations.
On a Mac, iTunes 12.6.3 will install over iTunes 12.7. Once installed it will not prompt to update to higher versions.
To preserve all your metadata, you do need to have your iTunes .itl file to revert to. It was saved automatically to the Previous iTunes Library folder when you installed iTunes 12.7.
For more information and download links, see this Apple document.
https://support.apple.com/en-gb/HT208079
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To ease support of multiple devices Apple also enabled Content Caching in High Sierra. For more information, see this tip:
iTunes 12.7 app management using Content Caching
Related:
- Changes in the new iTunes 12.7: https://support.apple.com/en-us/HT208075
App-Thinning: Why lack of app management in iTunes 12.7 is not all bad news
- Manually manage content on your iPhone, iPad, or iPod touch using iTunes - Apple Support