Saïgon

Saïgon is a semi-untethered jailbreak for certain 64-bit devices, running iOS 10.2.1, developed by cheesecakeufo. Saïgon works by sideloading an IPA using Cydia Impactor. The first beta was released on October 15, 2017. It was announced that support for iPhone 6s on iOS 10.3.1 would come in the future.