The transition to IPv6 is inevitable. Apple no longer accepts submissions to the App Store, if their networking does not work in IPv6 networks (recommended reading). As a result, some developers may become worried. Well don't be, Photon got you covered.
We know that a full switch to IPv6 can take time.
Testing IPv6 With DNS64/NAT64
We recommend testing on a local environment using the methods proposed by Apple.
You can easily setup a IPv6 WiFi using a Mac.