I'm using VoIP background mode in our App, I'm now using iOS 10 developer beta with Xcode 8 beta, I found this print after calling - (BOOL)setKeepAliveTimeout:(NSTimeInterval)timeout handler:(void(^ __nullable)(void))keepAliveHandler"Legacy VoIP background mode is deprecated and no longer supported"I know this API is depricated since iOS 9, I want to make sure, does it mean this API will not work at all in iOS 10 and later?