iPhone X iOS 12 Jailbreak
If you want to jailbreak your iPhone X you'll want to avoid the iOS 12.3.1 update for now.
Developers have released two iOS 12 jailbreak tools. You can jailbreak using the Chimera tool if you’re running iOS 12.0-iOS 12.1.2. It’s a semi-tethered jailbreak. You can also use the unc0ver jailbreak tool.
Unfortunately, there's no way to jailbreak if you're currently running iOS 12.2, iOS 12.1.3, iOS 12.1.4, iOS 12.2, or iOS 12.3.
We could see a release down the road so you'll want to keep your eyes peeled as we push deeper into the year.