We are creating a hybrid application using Worklight. We need to use version 6.2.0.1 Consumer edition. Does interim fix: 6.2.0.1-WCE-IF201502141613 provide 64-bit support for hybrid applications? What is the Cordova library version that we get with this iFix?
Worklight 6.2 is shipped with Cordova v3.4.1.
It doesn't matter which iFix of 6.2 you're using, it's still Cordova 3.4 (with patches in case of bugs).
However this does not matter - all Worklight releases received an iFix release for 64bit support for iOS.
See this blog post for more information.
What you need to do is to go to IBM Fix Central website and download the latest available iFix for your version of Worklight. That is all.
The iFix version you've mentioned is from 2015, well after the support was added. Still, it is best to download the latest iFix in case there is one newer than the one mentioned.