After a rocky few weeks Coolstar has officially released his jailbreak tool for iOS 11-11.1.2 with Cydia now available.
Some important notes regarding this jailbreak:
• An APFS snapshot is created of / so you may revert it at a later date if needed
• It is recommended to futurerestore if you have blobs before running Electra to ensure the best possible installation
• Cydia is included
• OpenSSH is running on port 22
• Electra repo added by default
• Substitute, Tweak Loader and Substrate Compatibility Layer available from Electra repo
• Many packages need to be updated for both Electra and iOS 11 (make sure they’re updated before installing as they may not work yet)
• RocketBootstrap 1.0.6 or higher is required for use on iOS 11
• Many apps, launch daemons and installation binaries are broken as they require entitlements to be added
The tool can be downloaded directly from here.