The first release of the Node.js buildpack after January 5, 2020 will no longer include Node.js versions 8.x. These Node.js versions will no longer be supported upstream. Please migrate your Node.js apps to supported versions of Node.js before that time.
Note: While the default version of Node.js in the Node.js buildpack is 10.x, it is recommended that you ensure your Node.js applications are not specifying a Node.js version of 8.x in either a buildpack.yml, .nvmrc, or package.json files. As always, the buildpacks team is happy to answer questions you may have about this deprecation in the #buildpacks Slack channel.
Elliott Shanks, CF Buildpacks PM