Not sure when they launched but the topic pages that Evening Edition added are interesting. Syria’s one example I dug up. They seek to answer three questions: What’s happening? Why you should know about this? and What now?
At the bottom there’s then a list of related stories sorted chronologically. Cool to see some real-world experimentation with explainers. It’s probably a lot of editorial work to craft those summaries but the payoff is worth it, I think.