I think the click event doesn't work anymore, because the payload changed for events... so this probably should be changed? .on("click", (_, i) => choose(i))

Oh yeah, thanks Cobus!

SVG element's don't have title attributes; https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute See http://bl.ocks.org/ilyabo/1339996 for an example of adding the title element. For your code, use: sel .selectAll("svg") ... .on("click", (_, d) => choose(d)) .append("svg:title").text( d => d.name);

Great point Mario — fixed.