The wines were bottled in March and April 2018.
Because of the large losses of Echézeaux and Grands-Echézeaux in 2016, they were bottled only in magnum and not included in this tasting. As you can see, though, it is a spectacular group of wines.
My previous notes on tasting the 2016s from barrel (including Echézeaux and Grands-Echézeaux) are located here.