> a ton of change to the very basics of how we work I do data work on Python (20%) and R (80%). Of these, - Both base Python itself (2 -> 3 -> 3.6) as well as

> a ton of change to the very basics of how we work I do data work on Python (20%) and R (80%). Of these, - Both base Python itself (2 -> 3 -> 3.6) as well as the major data libraries (e.g. pandas) changed a lot. - Not base R but the major libraries (e.g. dplyr, ggplot2, knitr) changed significantly. So, for me, yes, a ton of change to the very basics of how I work happened when using Python and when using R's newer libraries.