IOS11 was exclusively used by System Menu 2.0 and System Menu 2.1. It was also the first IOS with a build tag, along with IOS12 and IOS13.
The content IDs on v10 are 8 and 9 (where 8 is the build content); this means contents 0-7 were used for prerelease builds. It is unlikely that there were any versions before v3, since IOS4v3 was the latest version of IOS4 at the time of release, and Nintendo normally starts new IOSes at the versions that the old IOSes most recently left off at. Assuming all 7 possible versions were used, v3-v8 would each have a single content, while v9 and v10 had build tags along with their main content.
Titles using this IOS
- System Menu 2.0
- System Menu 2.1
Version history