Xcode 11 GM Seed 1 Released

[sourabhgupta]

Xcode 11 Beta 7 Released

We will try to get that installed in the next image, sure. In the mean time there is a work around: if you use one of the non-system Ruby versions that we install in the image, all of the headers are present. https://circleci.com/docs/2.0/testing-ios/#using-custom-ruby-versions (Make sure to pass --login to the shell) Marc