“On the first day of its World Wide Developers Conference (WWDC), Apple presents its keynote, where it mostly unveils its consumer-facing plans,” Iljitsch van Beijnum reports for Ars Technica. “Later, when the pundits are taking their first jab at explaining what it all means, there’s the Platforms State of the Union session. At 35 minutes in, Sebastien Marineau, Apple’s VP of Core OS, dropped the following bomb: ‘Because IPv6 support is so critical to ensuring your applications work across the world for every customer, we are making it an App Store submission requirement, starting with iOS 9.'”

“During the ‘Your App and Next Generation Networks’ session on Friday morning, Prabhakar Lakhera took the stage and clarified what’s going on. He explained in a bit more detail what Apple’s considerations with IPv6 on iOS 9 are,” van Beijnum reports. “Lakhera referred to the fact that there are pretty much no IPv4 addresses left and that the big cellular carriers really don’t want to continue running IPv4 and IPv6 side by side in dual stack configuration—apparently, IPv6-only cellular service is coming. Soon.”

“iOS developers should definitely check out the presentation, and it’s highly recommended for non-developers with an interest in networking, too, with Stuart Cheshire explaining how to remove network performance bottlenecks that aren’t caused by a lack of raw bandwidth,” van Beijnum reports. “This includes why CoDel is the bee’s knees and that Apple is enabling Explicit Congestion Notification (ECN) in iOS 9 and OS X 10.11.”

More info and links in the full article here.

MacDailyNews Take: IPv4 addresses are exhausting.