IOS 8.3 build 12E61520g

iOS 8.3 build 12E61520g is a build of iOS 8.3. It can be seen running on an iPad mini 4 prototype of which a photo was shared by JinStore. This is notable because the earliest iOS version the iPad mini 4 only officially supports is iOS 9. Other builds of iOS 8 known to run on the iPad mini 4 include iOS 8.4 builds 12H33 and 12H60160o.