Deprecation of NENetworkRule and NE

Question: Best Practice for NEFilterRule and NENetworkRule Initializers with Deprecated NEHostEndpoint?

Hi all,

I'm looking for guidance on the right way to construct an NEFilterRule that takes a NENetworkRule parameter. Reading the latest documentation, it looks like:

• All initializers for NENetworkRule that accept an NEHostEndpoint are now deprecated, including initWithDestinationHost:protocol: and those using the various *Network:prefix: forms. NEHostEndpoint itself is also deprecated; Apple recommends using the nw_endpoint_t type from the Network framework instead.
• However, NEFilterRule still requires a NENetworkRule for its initializer (docs).

With all NENetworkRule initializers that take NEHostEndpoint deprecated, it’s unclear what the recommended way is to create a NENetworkRule (and thus an NEFilterRule) that matches host/domain or network traffic.

What’s the proper way to construct these objects now—should we create the endpoints using nw_endpoint_t and use new/undocumented initializers, or is there an updated approach that’s considered best practice?

Helpful doc links for reference:

• NEFilterRule docs
• NENetworkRule docs
• NWHostEndpoint (now deprecated)