packageDiff

Easily compare changes between package versions.

YAML is a small package, but several major packages depend upon it

library(packageDiff)
a <- pkgInfo('https://cran.r-project.org/src/contrib/Archive/yaml/yaml_2.1.18.tar.gz')
b <- pkgInfo('https://cran.r-project.org/src/contrib/Archive/yaml/yaml_2.1.19.tar.gz')
pkgDiff(a, b)

Hmisc is a massive package

library(packageDiff)
pkgDiff(pkgInfo('https://cran.r-project.org/src/contrib/Archive/Hmisc/Hmisc_4.1-1.tar.gz'),
        pkgInfo('https://cran.r-project.org/src/contrib/Archive/Hmisc/Hmisc_4.2-0.tar.gz'))

ggplot2 has lots of magic

library(packageDiff)
pkgDiff(pkgInfo('https://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_3.1.0.tar.gz'),
        pkgInfo('https://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_3.2.0.tar.gz'))