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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

Command Line

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

Continuous Delivery & Integration
- Continuous Integration

Language Support
- Node.js
  - Node.js Behavior in Heroku
  - Troubleshooting Node.js Apps
  - Working with Node.js
- 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
  - Working with PHP
  - PHP Behavior in Heroku
- Go
  - Go Dependency Management
- Scala
- Clojure
- .NET

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

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
- Heroku Connect (Salesforce sync)
  - Heroku Connect Administration
  - Heroku Connect Reference
  - Heroku Connect Troubleshooting

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

Default JDK updates

Change effective on 18 April 2019

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

Java 7 - 1.7.0_222
Java 8 - 1.8.0_212
Java 11 - 11.0.3
Java 12- 12.0.1

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

io.js deprecated as a deployment target Ruby 2.6.3 now available on Heroku