Game Analytics v2 upgrade question -- iosIdentifierForVendor?

I’m interested in upgrading to GA v2, but our game is for kids, and we don’t use the IDFA on iOS. The previous version of the Corona plugin has a field called ga.iosIdentifierForVendor. What has happened to this functionality?

BONUS QUESTION: There were a number of fields from the version 1 plugin which are no longer there – batching, debug, etc. Will these be reinstated eventually in v2, or are they done automagically, or are they out?