We've changed how drilling down into opens and clicks works on an email's analytics page. Gone is the clumsy and slow modal of yesteryear; arrived is a quicker and more ergonomic nested drilldown. Click into opens, clicks, replies, bounces — whatever you're curious about — and the details unfold right where you are, instead of in a dialog floating on top of everything.
This all comes from the same data source as before (the same open tracking and click tracking you already have), which means we got to unship a bunch of bad UX and make it easier for you to poke around and understand at a glance how subscribers engage with your emails. It pairs nicely with sorting and filtering your sent emails by open and click rate: find the outlier from the list, then drill into it without ever losing your place.
There is exactly one casualty of this change: you can no longer view the number of times a given subscriber has opened or clicked an email from within the email's view. That count now lives on the individual subscriber's details page instead. I'll be honest — I don't think anyone is relying on that functionality particularly heavily. But if you secretly are, and this change has broken your workflow in some way, please do write in so we can learn more and potentially get you situated some other way.