So, I just installed Xcode 6GM and played with my iOS7 app on a simulator with iOS8.
I have a UITableView that is in edit mode, and now there is a circle on the left side of the cell that does not appear when working on iOS7.
I took a look at the documentation for iOS8, but I don't see any new constants, and I use UITableViewCellEditingStyleNone and UITableViewCellSelectionStyleNone .
This circle disappears when tableView.editing = NO also allows MultipleSelectionDuringEditing = YES.
If someone tells me what is happening, it will be great :)
EDIT: Compiling from XCode6GM to my iPhone running iOS7.1 also gives me a circle. I suspect a bug with Xcode6gm?
Here is a screenshot with circles:

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