The Electra Team released an updated version of the iOS 12-centric Chimera jailbreak tool late last night, officially bringing it up to version 1.3.3 on the team’s website.
Citing a Tweet shared via the Electra Team’s official Twitter account at the time of release, this update implements support for the new Sock Puppet 3 exploit by @umanghere, which enables support for A7-A8(X) devices on iOS 12.1.3-12.4: