I read in the latest release notes that custom User-Agents will no longer be sent to HTTPS proxies. How should we expect the user agents to be filled for these proxied requests? Would these be instead populated with the 'standard' user agent that URLSession would produce?

I've been wondering what is the memory limit for network extensions. Specifically, I'm using the NEPacketTunnelProvider extension point.The various posts on this forum mention 5 MB and 6 MB for 32-bit and 64-bit respectively. However I find that (at least on iOS 10) the upper limit seems to be 15 MB. Is this the new memory limit for extensions?