Meridian

Meridian is a semi-untethered jailbreak for all 64-bit devices running iOS 10.0-10.3.3, primarily developed by PsychoTea, with extensive contributions from others. Meridian works by sideloading an IPA using Cydia Impactor or using TotallyNotSpyware through Safari. The first public beta of Meridian was released on 2018.

Due to "differences in implementation", users of Meridian will need to use ssh to download and install this deb. Otherwise Cydia will not function. Normally this would be done automatically, but the site at repo.midnight.team went down in 2021.