Yukon 17A508

Basic Info
Yukon 17A508 is an internal build of iOS 13, which was dumped off of an iPhone 8 DVT prototype. A modified copy of this build, with improper permissions, was uploaded on May 12th of 2020. A properly-dumped copy is known to exist but remains unleaked as of 2023.

Findings
This build references to an accessory called "B389", this is the codename for AirTags. It also refrences "D79" which is the codename of the iPhone SE 2020 model.