Tangent query regarding iOS. Were there any updates/announcements about native development or C++/Swift interoperability in recent WWDC16 talks.

Following on last year's WWDC, around 90% of the talks used Swift.

They announced which upcoming parts of macOS have been re-written in Swift. The dock and a few daemons were part of the list.

They are very keen in focusing on Swift going forward, but with a good interoperability story with Objective-C, thus making Swift/Objective-C a duo similar to .NET/C++ on Windows.

No information about interoperability with C++. Your best way is still Objective-C++ as a mean to create Objective-C friendly bindings that can be consumed from Swift.

You can watch the sessions here

https://developer.apple.com/videos/wwdc2016

If you don't have the inclination to watch them, most have slides available as well.

what's the deal with libssl/libcrypto. I discovered that if you put these into your APK, it ignores them using instead its own copies.

So if you think you're working from your own compiled official version, you're not.