The review of “SE-0195 — Introduce User-defined “Dynamic Member Lookup” Types” begins now and runs through January 29, 2018. The proposal is available here: https://github.com/apple/swift-evolution/blob/master/proposals/0195-dynamic-member-lookup.md Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to the review manager. When emailing the review manager direct...