The kind, generous, and very skilled CJ Yetman pinged me the other day asking if he could help with any of "my" htmlwidgets. After seeing CJ's work on networkD3, I could not refuse this incredible offer, and I asked if he would be willing to help convert sunburstR to d3v4. sunburstR has been by far the most popular htmlwidget from my htmlwidget/week project.
d3v4 for htmlwidgets
The transition to d3v4 will be very painful for the htmlwidgets community, and the pain is amplified by the loosely knit band of htmlwidget developers who find it nearly impossible to get help, feedback, or use cases for their open source efforts. This sankeyD3 issue provides more of the gory details of the transition.
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