The keen team has demonstrated iOS 11 Jailbreak on POC conference at South Korea. They have shown Jailbroken iPhone X device up to iOS 11.1.2 version.

Jailbreak iOS 11 and higher

Unofficial Semi-tethered tool Pangu8 + Keen
Before start, you have to consider about the followings.
1) Make sure that you have installed the latest version of iTunes.
2) Make sure that your Internet connection is working properly.
Step Guide
Step 1 -  Extract the Keen Pangu8 zip folder to your desktop, and double click the iOS 11 Jailbreak exe to open it.
Step 2 - Connect your iOS 11 device to the computer and click "Continue" button.
Step 3 - It takes few seconds to detect your device model and iOS version.
Step 4 - It will start to install Keen IPA file to your device.
Step 5 -   Click the done button. Now you can find the Keen app on your iPhone.
Step 6 - Open the Keen Pangu8 app on your iOS device.
(You do not  need to trust the developer to use this app.)
Step 7 - Tap the Jailbreak button on the Keen app. It takes few seconds to complete iOS 11 Jailbreak process and finally restart your device
Step 8 - Now you have done, Enjoy the Cydia.
note - If you can not find the Cydia, please tap again the Jailbreak button on the Keen app. (Please retry several times)
Pangu8/Keen Jailbreak is not a untethered Jailbreak. This is a Semi-tethered Jailbreak. It means, You need to re Jailbreak (using the Keen iOS app) everytime you reboot the device.
Compatible Device:


Phone 7 & 7 Plus , iPhone 6S & 6S Plus ,iPhone 6 & 6 Plus

iPhone SE / iPhone 5s , iPod Touch 6G

iPad Mini 2 / iPad Mini 3 / iPad Mini 4

iPad Air /iPad Air 2 /iPad Pro
Pangu iOS 11
Pangu has released the Online Jailbreak app installation method as Pangu Anzhuang. You can install non system rooted Jailbreak apps for iOS 11 - iOS 11.1.2 version for free with this method. Read more about Pangu Anzhuang.
Pangu Jailbreak App Installer
Pangu Jailbreak App Installer is alternative jailbreak solution to install third party apps for latest iOS versions. It works with Cydia Impactor. Click iOS 10.3.3 Jailbreak page for more details.
zJailbreak
zJailbreak is a Jailbreak alternative method for latest iOS  versions. You can install many Jailbreak functions to your non-Jailbroken running iOS 11 to iOS 11.2 versions from zJailbreak.
Semi Jailbreak
Semi Jailbreak  is no longer compatible with latest iOS  versions.  This perfectly work up to iOS 9.3.4. You can use zJailbreak or Cypple as jailbreak alternative solutions for latest iOS versions.
Untethered jailbreak
Most of the time Untethered Jailbreak will not be possible with iOS 11. However, Pangu and Yalu jailbreak developers are still trying to exploit iOS 11. So, it will have iOS 11 jailbreak with Pangu or Yalu tool.

Step 3 - Now you can choose a jailbreak app from above Jailbreak app categories.
Step 4 - Click on the app, Tap Generate code button to the developer code of app.
Step 5 - Copy the code and paste it on Pangu Anzhuang app.
Step 6 - Now tap the Install button. Then Jailbreak app will be started to download.
Step 7 - Now you have successfully downloaded Jailbreak app to your iOS device.

4) Keen Jailbreak

Step Guide to install the Cydia

Follow this guide to install the Cydia for iOS 11 and higher versions using the Anzhuang Jailbreak app installer.
Step 1 - Go to App Manager page, Then you can find the Cydia as the 1st application of this list.
Step 2 - Tap the "Generate code" and copy the generated developer code for the Cydia.

Ru$za - The founder of Dev code extraction method.

Keen IPA for iOS 11.1.1
The keen team released Jailbreak for iOS 11.1.1. But, still it is a demo version and it needs to develop more for public release. As the latest products of Keen-Lab, Pangu8 + Keen IPA Installer can use to jailbreak iOS 11 (beta) versions and Keen IPA tool helps to jailbreak iOS 11.1/11.1.1 versions.
 
iOS 11 Jailbreak scams
Most of Youtube videos show scam jailbreaking methods for iOS 11. They just want to install pay per install iOS apps to your device or join you to a paid subscription through your mobile network. Just refer the trusted sources such as Reddit, Redmond pie to find the news about iOS 11 Jailbreak.
Mac Jailbreak tools

Keen or Yalu11 has not released a Mac based Jailbreak for iOS 11. Velonzy is the only Mac Jailbreak alternative solution for iOS 11.

Phoenix  Jailbreak
Phoenix is the latest IPA based Semi-tethered Jailbreak solution for iOS 9.3.5 version on 32-bit devices. However, no news about the iOS 11 Jailbreak from Phoenix developers.


Tigris Jailbreak
Tigris Jailbreak team is working for Semi-tethered Jailbreak for 64-bit apple devices. However, they failed with Apple's new iOS 11 releases.

 
Games
App managers
Best apps
Entertainment
System tweaks
Other Apps
Customization apps

Device compatibility for Anzhuang

iPhone X , iPhone 8 , iPhone 8 Plus, Phone 7 & 7 Plus , iPhone 6S & 6S Plus ,iPhone 6 & 6 Plus

iPhone SE / iPhone 5s , iPod Touch 6G

iPad Mini 2 / iPad Mini 3 / iPad Mini 4

iPad Air /iPad Air 2 /iPad Pro
Step 1 - Install the zJailbreak from above button. You must enter your device passcode to install it.
Step 2 - Open zJailbreak app. Install Pangu Anzhuang application available under jailbreak category.

Step guide to install Jailbreak apps using Pangu Anzhuang

Themes
OS Simulators
++ Apps
1) Anzhuang - Anzhuang is an easy online Jailbreak app installation method for iOS 11. It installs Cydia and favorite Jailbreak apps for iPhones/iPads extracting app developer codes.

1) Anzhuang

iPhone X
Apple just introduced iPhone X ( X represents 10 in roman numbers ). Apple Introduced it with iOS 11 Golden Master version and it's released to the market with iOS 11.1 version. Even if, Apple added physical Jailbreak protection method and kernel protection with iPhone x to prevent Jailbreaking, Keen-lab team successfully jailbroken it for Cydia. Click here for more details.

iPhone 8 / iPhone 8 plus
Apple introduced iPhone 8 and iPhone 8 plus with iOS 11. Apple has improved kernel protection of these iPhones same as iPhone 10. Also it has improved security protection of iOS 11. We can keep hope about iPhone 8/8 Plus jailbreak, because of the possibility of iPhone X jailbreak.

 
 
2) Velonzy - Velonzy is a new Jailbreak app installation method for iOS 11, and it's all subversions. You must have a computer (Windows or Mac) to download the Velonzy Jailbreak toolkit.
4) Keen Jailbreak - It is an IPA based Semi-tethered Jailbreaking solution.  Keen Jailbreak is compatible with iOS 11 and higher versions except iOS 11.1.2.

Complete Guides & Download links for above methods

Anzhuang is the most popular Jailbreak app installation method for iOS 11 and higher versions. It has been found by famous Russian hacker #ru$za. Anzhuang allows users to install Cydia and popular Jailbreak apps to the iOS 11 & sub versions via developer code extraction method.
Anzhuang is a new Jailbreak app installation method to latest iOS versions (iOS 11 and higher). Anzhuang iOS 11 Jailbreak app installation process is different from untethered or Semi-tethered Jailbreaking methods.
Anzhuang allows users to install Cydia and popular Jailbreak apps to the iOS 11 & subversions. Also, you can install popular Jailbreak apps/themes/launchers to your iOS 11 using this online method. 

2) Velonzy

Velonzy is the Jailbreak app installation method for iOS 11 versions (Up to iOS 11.1.2)
 
Download Velonzy Software from the following download links. Visit Velonzy page to get installation guide.

How to Trust Enterprise Apps?

You cannot open some Jailbreak apps after the installation process through Anzhuang. You may need to trust the developer of the app before open the app.
1. Dismiss the popup message.
2. Go to Settings --> General --> Profile and Device Management.
3. Now trust the application.
Jailbreak app download
These Jailbreaking solutions are compatible with iOS 11.0.1 / 11.0.2 / 11.0.3 ,  iOS 11.1 / iOS 11.1.1 / iOS 11.1.2 and iOS 11.2.
Also, Unofficial Keen Semi-tethered Jailbreak released iOS 11 beta versions.
Anzhuang for iOS 11
Copy the code and paste it into the text area of the Anzhuang app
Tap the install button, It will be started to download Jailbreak app to your iPhone/iPad.
Generate Jailbreak app dev code
Keen Jailbreak method was only compatible with iOS 11 beta versions.
Some users have complained about  boot loop after the iOS 11 keen Jailbreak.
Keen iOS 11 Jailbreak is not valid at this time. We have removed all download links of this tool. Please consider another Jailbreak solution for iOS 11.
Jailbreak App Categories
Apple provides special permissions to the developers. Developers can install any apps on their devices for testing purposes. Velonzy has exploited this method, and they allow all iOS users to register as virtual Apple developers.
Also, they are maintaining Jailbreak app list. Users can submit their UDID to download Jailbreak apps for their iOS 11 iPhones/iPads.

Complete Guides & download links for full functional jailbreak

What are the new Jailbreak features?

New iOS Themes added to the latest iOS versions
Currently, there is no full functional Cydia for iOS 11 onwards. However Anzhuang alternative jailbreak solution applicable for this version too. Pangu8 team added new iOS themes to iOS 11.0.3 via Anzhuang. These themes are compatible with all the latest iOS versions up to iOS 11.1.2.  Users can install the these iOS Themes from above Jailbreak App Categories, after Installation of Pangu Anzhuang app.
Available Themes - Lie Express/Gold blackberry/Fairy Tail/Blue water/Android Blawb/Stock quetto/Blue Metal
How to get latest iOS Game Tweaks for latest iOS versions
It has good news for the Game lover. Pangu8 team specially redesign few game tweaks targeting latest iOS versions. It has no any jailbreak tool support for iOS 11 onwards. zJailbreak provides alternative jailbreak apps. However, it can install all these games up to iOS 11.1.2 version. Pangu Anzhuang is the way to install these new games. Click here to get the Game installation guide with the Game App category.
Available New Games : Angry birds go/MC4/8 Ball pool/Temple Run/Baseball 17 /Sniper/Batman and many more.
Get Macintosh 9.2 OS Simulators for iOS 11 to iOS 11.1.2
Users can install jailbreak tweaks to latest iOS versions using Anzhuang. OS simulator is recommended jailbreak tweak for iOS 11.0.3. Also this is compatible with iOS 11 to iOS 11.1.2. Macintosh OS simulator is the newly added simulator and best solution to get the newest OS experience. Click here to get OS simulators.
Available OS Simulators : Macintosh/Ubuntu/Lion Mac/Windows me/Windows XP and more.

methods

 
 
iOS 10.2.1 Jailbreak with Saigon
Abraham Masri released Saigon jailbreak tool. It can jailbreak iOS 10.2.1 version running all the 64-bit devices successfully with this. You cannot use Saigon tool to jailbreak iOS 10.2.1 version, If you are a 32-bit device user. zJailbreak alternative solution can recommend for them.

You cannot install Anzhuang directly to your iPhone/iPad. Currently, //zJailbreak is the only 3rd party app store which you can install Anzhuang.
Anzhuang uses developer code extraction method to install Jailbreak apps on the iOS. Famous Russian hacker ru$za has introduced this method for the 1st time.
You may need to trust the developer for some apps after installing them to your iOS 11 iPhone or iPad using the Anzhuang.
Ru$za is the new Jailbreak hacker from Russia. He has found this method to install Jailbreak apps on iOS 11 iPhones/iPads extracting developer codes of the Jailbreak apps.
You must know the developer codes for Jailbreak apps to install them using Anzhuang. We provide random developer codes from this web page. We will always add new Jailbreak apps to this database. Please check above Jailbreak app categories to generate developer codes for Jailbreak apps.

Customize your iPhone/iPad

We have installed some iPhone/iPad themes from Anzhuang and created a video including top 10 themes.

Watch the following video and give your feedback in the comment section of the Youtube.
However, Velonzy Jailbreak app installer is not available for all countries. Currently, the USA, UK, Europe (Most of the western European countries), Canada, Australia and New Zealand users can use the Velonzy.
First-time Velonzy launched to iOS 10.3.3 as a Jailbreak solution. Velonzy is compatible with all latest iOS versions except iOS 11.2 beta
 
The unofficial Semi-tethered tool was released for iOS 11 beta versions. Users could install Jailbreakable keen IPA for iOS 11 beta devices using Pangu8 Installer.
Unfortunately, this tool was not compatible with iOS 11 & higher public versions.
Please visit this page from your iOS device
Tap the following link from your iOS 11 iPhone or iPad to install zJailbreak
However, Anzhuang is not the universal Jailbreak app installation solution. Still, Some iOS rooted jailbreak apps may not work with Anzhuang Jailbreak app installer.
Currently, Anzhuang is the only Jailbreak solution for iOS 11.2.
Browse the following app categories to find the developer codes of iOS 11 compatible Jailbreak apps.

Status update for iOS 11 Jailbreak

June 5, 2017 -  Apple released iOS 11 beta to the Authorized Apple developers.
June 24, 2017 - zJailbreak 3rd party app store was compatible with iOS 11.
June 27, 2017 - Tu Tu App , Pangda helper App stores was compatible with iOS 11 beta.
July 04, 2017 - Anzhuang Jailbreak app installer was compatible with iOS 11. Non rooted Cydia version was available for the 1st time for iOS 11 beta.
August 14, 2017 -  Saurik updated Cydia Impactor for iOS 11 beta.
August 15, 2017 - Velonzy Software updated their Jailbreak app installer for iOS 11 beta.
August 31, 2017 - Keen team demonstrated an iOS 11 video for the 1st time at MOSEC  conference.
September 19, 2017 - Apple released iOS 11 to the public.
September 26, 2017 -  Apple released iOS 11.0.1 with no security updates.
September 29, 2017 - Yalu Jailbreak developer Luca exploited and got iOS 11 root access via WebKit Safari Exploit
October 3, 2017 -  Apple released iOS 11.0.1. No Jailbreak alternatives were effected.
October 6, 2017 - Apple disabled iOS 10.3.3 signing, You couldn't downgrade iOS 11 after this day. However, There was an error for some iPhones.
October 11, 2017 - iOS 11.0.3 was released.
November 3, 2017 - Apple released iPhone X with iOS 11.1.
November 4, 2017 - ru$za fixed some critical errors of Anzhuang Jailbreak app installer for iPhone X
November 10, 2017 - Velonzy Jailbreak app installer was compatible with iPhone X
December 07, 2017 - Popular Jailbreak hacker Ian beer released a  Jailbreak solution. Most of the times this will be the 1st public Semi-tethered Jailbreak according to iOS Jailbreak experts (  Ru$za , qwertyoruiop )
Semi Jailbreak (latest)
A Semi Jailbreak method (Houdini) has been released for the latest iOS versions by Saigon Jailbreak developer. You can install Jailbreak tweaks and themes using the Houdini Semi Jailbreak method

3) 666 Jailbreak - tfp0 666 Semi Jailbreak has been released for iOS 11 and higher versions. You can install Jailbreak themes & iOS system tweaks from this.

3) 666 Jailbreak

66 Jailbreak is compatible with all iOS 11 and higher versions except iOS 11.2.
Leaked images of 666 Jailbreak exploit.
Ian beer has recently released tfp0 exploit & Cheesecakeufo has released Houdini Semi Jailbreak app manager. Currently, Houdini Semi Jailbreak is available for iOS 10 - 10.3.2. 666 Jailbreak is a combination of both of these exploits.
However, there is no Cydia installation process in 666 Jailbreak.
This method may be available for iOS 11 - 11.1.2.  However,  You can still downgrade iOS 11.2 to iOS 11.1.2.
We expect this Jailbreak will be released soon. However, there is no guarantee about the iOS 666 Jailbreak.
Device compatibility - According to the developers, This Jailbreak solution will not be compatible with iPhone X.  But It will be support for iPhone 7 & Plus devices. 
Most of the times this Jailbreak will be a Semi Jailbreak. ( not a Semi-tethered) It means it will be installing another 3rd party app manager instead for Cydia.
Houdini