Cordova iOS 4.0.0 has been released. This release mainly focused on WKWebView (Modern WebView for iOS). May be need to update some 3rd party plugins to support.
Feature added to Cordova iOS 4.0.0
cordova platform add firstname.lastname@example.org
npm install -g cordovacd my_projectcordova platform update email@example.com
NPM plugin is still not updated , but you can install the plugin via git.
cordova plugin add https://github.com/apache/cordova-plugin-wkwebview-engine.git#1.0.0
Add WKWebView engine (optional):
cordova plugin add cordova-plugin-wkwebview-engine
Read More about Cordova iOS 4.0.0 – http://cordova.apache.org/announcements/2015/12/08/cordova-ios-4.0.0.html