Heroku-22-Stack-Upgrade-Guide - FastRuby.io | Rails Upgrade Service
Deploy, manage, scale Ruby apps in the cloud | Heroku
Migrate a Rails App from Heroku to Render | Render
Guide to Upgrading To The Latest Heroku Stack — One World Coders
Heroku Postgres | Heroku Dev Center
Getting Started on Heroku with Ruby | Heroku Dev Center
How to fix "Your Ruby version is 1.9.3, but your Gemfile specified 2.0.0" - Stack Overflow
GitHub - jgarber/heroku-buildpack-ruby-octopress: Fork of Heroku's Ruby Buildpack for Cedar with added support for compiling Octopress sites. See the blog post for specifics:
Heroku Lifts Ruby on Rails Development into the Cloud | TechCrunch
GitHub - heroku/ruby-rails-sample
Cloud Application Platform | Heroku
The "Ruby version does not exist for this stack" warning doesn't explain sticky versions · Issue #1141 · heroku/heroku-buildpack-ruby · GitHub
How to Deploy Rails API to Heroku (ruby-2.6.1) (PostgreSQL) - DEV Community 👩💻👨💻