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Categories

Heroku Architecture
- Compute (Dynos)
  - Dyno Management
  - Dyno Concepts
  - Dyno Behavior
  - Dyno Reference
  - Dyno Troubleshooting
- Stacks (operating system images)
- Networking & DNS
- Platform Policies
- Platform Principles
- Buildpacks

Developer Tools
- Command Line
- Heroku VS Code Extension

Deployment
- Deploying with Git
- Deploying with Docker
- Deployment Integrations

Continuous Delivery & Integration (Heroku Flow)
- Continuous Integration

Language Support
- Node.js
  - Working with Node.js
  - Node.js Behavior in Heroku
  - Troubleshooting Node.js Apps
- Ruby
  - Rails Support
  - Working with Bundler
  - Working with Ruby
  - Ruby Behavior in Heroku
  - Troubleshooting Ruby Apps
- Python
  - Working with Python
  - Background Jobs in Python
  - Python Behavior in Heroku
  - Working with Django
- Java
  - Java Behavior in Heroku
  - Working with Java
  - Working with Maven
  - Working with Spring Boot
  - Troubleshooting Java Apps
- PHP
  - PHP Behavior in Heroku
  - Working with PHP
- Go
  - Go Dependency Management
- Scala
- Clojure
- .NET
  - Working with .NET

Databases & Data Management
- Heroku Postgres
  - Postgres Basics
  - Postgres Getting Started
  - Postgres Performance
  - Postgres Data Transfer & Preservation
  - Postgres Availability
  - Postgres Special Topics
  - Migrating to Heroku Postgres
- Heroku Key-Value Store
- Apache Kafka on Heroku
- Other Data Stores

AI
- Vector Database
- Model Context Protocol
- Working with AI
- Heroku Inference
  - Inference Essentials
  - Inference API
  - Heroku Inference Quick Start Guides
  - AI Models

Monitoring & Metrics
- Logging

App Performance

Add-ons
- All Add-ons

Collaboration

Security
- App Security
- Identities & Authentication
  - Single Sign-on (SSO)
- Private Spaces
  - Infrastructure Networking
- Compliance

Heroku Enterprise
- Enterprise Accounts
- Enterprise Teams

Patterns & Best Practices

Extending Heroku
- Platform API
- App Webhooks
- Heroku Labs
- Building Add-ons
  - Add-on Development Tasks
  - Add-on APIs
  - Add-on Guidelines & Requirements
- Building CLI Plugins
- Developing Buildpacks
- Dev Center

Accounts & Billing

Troubleshooting & Support

Integrating with Salesforce
- Heroku AppLink
  - Working wtih Heroku AppLink
  - Getting Started with Heroku AppLink
  - Heroku AppLink Reference
- Heroku Connect (Salesforce sync)
  - Heroku Connect Administration
  - Heroku Connect Reference
  - Heroku Connect Troubleshooting
- Other Salesforce Integrations

Default Ruby for New Apps is Now 2.4.4

Change effective on 31 May 2018

The default Ruby version for new Ruby applications is 2.4.4. You’ll only get the default if the application does not specify a ruby version.

Ruby 2.6.0-preview2 now available on Heroku Git server updated to mitigate security vulnerability