Devtools 1.9.1 is now available on CRAN. Devtools makes package building so easy a package can become your default way to organise code, data, and documentation. You can learn more about developing packages in R packages, my book about package development that’s freely available online..

Get the latest version of devtools with:


There are three major improvements that I contributed:

But like many recent devtools releases, most of the coolest new features have been contributed by the community:

The default allows you to refer to github repos, but you can easily add deps from any of the other sources that devtools supports: see vignette("dependencies") for more details.

Support for installing development dependencies is still experimental so we appreciate any feedback.

See the release notes for complete bug fixes and other minor changes.