Is Apple going to release new version of Reachability classes to support IPV6 address?

What are you using reachability for? I'm finding it hard to imagine a situation where you'd want to run a reachability probe on a IPv6 address specifically (as opposed to a DNS address, which the Reachability sample code already shows how to do).

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Quinn "The Eskimo!"
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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We are using reachabilityForLocalWiFi from reachability class? I notice reachabilityForLocalWiFi method is using reachabilityWithAddress (local ip address)? I am wondering how will it work for the ivp6 address? Currently it works for ipv4 address.

I don’t think that will be a problem. Even if the device only has IPv6 connectivity to the outside world, it should still be able to get to link-local IPv4 addresses (169.254/16), which is what

+reachabilityForLocalWiFi

Have you tried this in the IPv6-only test environment that we introduced at WWDC?

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Quinn "The Eskimo!"
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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We use reachabilityForInternetConnection method to check connectivity. The method uses struct sockaddr_in. According to Apple's documentation, struct sockaddr_in6 should be used for IPv6.

So the question is though current Reachability classes may work in IPv6 testing environment but should the code be eventually updated for IPv6 compatibility? I plan to upgrade my MacBook to OS X 10.11 and setup local IPv6 network to test whether Reachability 3.5 works with IPv6 or not.

I have tested Reachability class [1] in NAT64 environment, and doesn't crash. But I am not sure it will work correctly in the real world.

I hope Apple release a new version of Reachability. Many third party libraries use it and it is a de facto standard.

It's little bit confusing that Apple's document [2] is pointing out the flaws of the Reachability sample code.

[1]

https://developer.apple.com/library/ios/samplecode/Reachability/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007324-Intro-DontLinkElementID_2

[2]

https://developer.apple.com/library/prerelease/ios/documentation/NetworkingInternetWeb/Conceptual/NetworkingOverview/UnderstandingandPreparingfortheIPv6Transition/UnderstandingandPreparingfortheIPv6Transition.html#//apple_ref/doc/uid/TP40010220-CH213-SW25