Choroplethr v3.6.4 is now on CRAN. This is the first update to the package in two years, and was necessary because of a recent change to the tigris package, which choroplethr uses to make Census Tract maps. I also took this opportunity to add new example demographic data for Census Tracts.
Read on for a listing of the updates, examples, and a request from Ari to help keep the project up to date by finding a suitable sponsor. H/T R-Bloggers