Clarification

📚🤓 Just improvements to documentation.

Mic Check

🤖💜 Support for testing with Heroku CI.

Just Docs

The buildpack codebase has been stable for months. Here's a release of nothing but improvements to the documentation 📚

Yarn

Zero-configuration support for yarn package manager. If yarn is installed locally, the new app will use it instead of npm.

Preserve Source Maps

Runtime environment variables no longer skew source maps in production. Supports up to 4KB of env var JSON; excess of 4KB will offset the source map.

If already using the runtime env vars npm module, upgrade to @mars/heroku-js-runtime-env v3.0.0 for this fix:

npm install @mars/heroku-js-runtime-env@3.0.0 --save

Runtime Env

Complete support for javascript/React apps + Heroku flow by injecting environment variables into the javascript bundle at runtime.

• Enabled by improvements in create-react-app 0.7.0
• Backward-compatible with earlier versions.

Dokku Too

Tiny fix to support another system that consumes Heroku buildpacks.

Nodeworthy

Support NODE_PATH (and other NODE_* env variables) during build.

Environmental awareness

Support REACT_APP_* custom environment variables.

Documentation

Updates to documentation based on personal feedback & issues.