API Management will support IPv6 with the rest of Azure. I believe that Apple simply requires apps to work on IPv6 only networks. IPv4 support is not going away any time soon. Please check with Apple to be sure, of course.Robb Brock commented
Any update on when this support will roll out?
This is not on our roadmap and we have no plans for it long term.
Thank you for your suggestion.
This feature is now in preview for EF Core 2.2. To learn more, read the blog post and try here, https://blogs.msdn.microsoft.com/dotnet/2018/09/12/announcing-entity-framework-core-2-2-preview-2/
For applications that require cross document join, please consider the Gremlin API: https://docs.microsoft.com/en-us/azure/cosmos-db/create-graph-dotnet, which has primitives for joins, traversals, and other graph operations.
We are evaluating expanding the SQL grammar to support graph functionality, which will provide the ability to perform cross-document JOINs. Please upvote this item to help us prioritize this work.