You might be able to jailbreak iOS 11.3.1 using Safari-based JailbreakMe 5.0. Here are the details on it.
iOS 11.3.1 jailbreak Rebirth is out now with universal device support and root shell access. Here are the details on it.
iOS 11.4 jailbreak with working Cydia has been successfully demoed by security researcher and 2018 Pwn2Own champion, Richard Zhu.
CoolStar Has Successfully Jailbroken iOS 11.3.1, Posts Screenshots, Provides More Details On Electra
Jailbreak iOS 11.3.1 is getting closer to release as CoolStar has shown off iOS 11.3.1 jailbroken on his iPad with upcoming Electra release.
Here's latest iOS 11.3.1 jailbreak progress update for Electra tool coming for iPhone, iPad and iPod touch devices.
iOS 12 beta semi-jailbreak has been teased via Houdini by developer Abraham Masri. Here are the details on it.
Here's latest jailbreak iOS 11.3.1 with Electra update post Ian Beer's release of an exploit for jailbreaking iOS 11.3.1.
You can now download Houdini beta 3 iOS 11.3.1 semi-jailbreak for your iPhone and iPad devices. Here are the details on it.
A "simple" iOS 11.3.1 kernel exploit PoC has been released in the public domain by John Akerblom, a relatively unknown individual as far as the world of jailbreaking is concerned.
Looking to jailbreak iOS 11.4? Well you will at least be happy to know that 11.4 SEP is compatible with iOS 11.3.1 to make FutureRestore possible.
