Appium support for IOS 11 beta

Help Required!
Appium was working fine on IOS 10.3.3, just now I updated my device to IOS 11.
Also updated Appium to beta version ie 1.6.6 and xcode beta version 9.

So again running scripts which were running fine in previous IOS version, now throwing error:

Even Webdriver got installed device but appium not able to launch webdriver.
Following are the log snippet:

[debug] [XCUITest] Removing WDA application from device
[XCUITest] Error: Unable to start WebDriverAgent session because of xcodebuild failure: “Could not proxy command to remote server. Original error: Error: socket hang up”. Make sure you follow the tutorial at https://github.com/appium/appium-xcuitest-driver/blob/master/docs/real-device-config.md. Try to remove the WebDriverAgentRunner application from the device if it is installed and reboot the device.
at XCUITestDriver.quitAndUninstall$ (…/…/lib/driver.js:376:13)
at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
at process._tickCallback (internal/process/next_tick.js:103:7)
Error: Unable to start WebDriverAgent session because of xcodebuild failure: “Could not proxy command to remote server. Original error: Error: socket hang up”. Make sure you follow the tutorial at https://github.com/appium/appium-xcuitest-driver/blob/master/docs/real-device-config.md. Try to remove the WebDriverAgentRunner application from the device if it is installed and reboot the device.
at XCUITestDriver.quitAndUninstall$ (…/…/lib/driver.js:376:13)
at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
at process._tickCallback (internal/process/next_tick.js:103:7)
[debug] [XCUITest] Not clearing log files. Use clearSystemFiles capability to turn on.
[debug] [iOSLog] Stopping iOS log capture
[MJSONWP] Encountered internal error running command: Error: Unable to start WebDriverAgent session because of xcodebuild failure: “Could not proxy command to remote server. Original error: Error: socket hang up”. Make sure you follow the tutorial at https://github.com/appium/appium-xcuitest-driver/blob/master/docs/real-device-config.md. Try to remove the WebDriverAgentRunner application from the device if it is installed and reboot the device.
at XCUITestDriver.quitAndUninstall$ (…/…/lib/driver.js:376:13)
at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
at GeneratorFunctionPrototype.invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
at process._tickCallback (internal/process/next_tick.js:103:7)

Tried rebooting the device as well as updated libimobiledevice.