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

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 Postgres Advanced
- Heroku Key-Value Store
- Apache Kafka on Heroku
- Other Data Stores

AI
- Inference Essentials
- Inference API
- Inference Quick Start Guides
- AI Models
- Tool Use
- AI Integrations
- Vector Database

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

OpenJDK 27.0.1.0.3, 25.0.5.0.3, 21.0.13.0.3 and 17.0.21.0.3 now available

Change effective on 29 October 2026

Heroku’s support for Java, Scala, Clojure, and Groovy now uses the following default versions for each supported major version:

Java 17 is now 17.0.21.0.3
Java 21 is now 21.0.13.0.3
Java 25 is now 25.0.5.0.3
Java 27 is now 27.0.1.0.3

Please visit the Dev Center for more information on Java version support.

Heroku-22, Heroku-24 and Heroku-26 stacks updated