Ruby apps now default to Node version 20.9.0

Change effective on 02 November 2023

Applications using the heroku/ruby buildpack that do not already have node installed by another buildpack (such as the heroku/nodejs buildpack) will now receive:

  • Node.js version 20.9.0 (was previously 16.18.1)

These versions and instructions on how to specify a specific version of these binaries can be found on the installed binaries section of the Heroku Ruby Support page.