Some errors on iPhone apps could happen due to users don’t upgrade their iOS (iPhone’s operating system). Further more, some functionality we plan to use in our app could even be unavailable to them.
In this exercise let’s figure out what’s the oldest iOS version Bindle iPhone users have.
iOS uses semantic versioning which has the following format: MAJOR.MINOR.PATCH. For example: 12.1.2. The newer version would be 12.3.1 and the older version is 11.9.0.
Provide the full version as an answer, for example 12.1.1.