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Heroku Architecture
- Compute (Dynos)
  - Dyno Management
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Command Line

Deployment
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Continuous Delivery & Integration
- Continuous Integration

Language Support
- Node.js
  - Troubleshooting Node.js Apps
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- Ruby
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  - Troubleshooting Ruby Apps
- Python
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  - Background Jobs in Python
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  - Working with Django
- Java
  - Java Behavior in Heroku
  - Working with Java
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  - Working with Spring Boot
  - Troubleshooting Java Apps
- PHP
  - PHP Behavior in Heroku
  - Working with PHP
- Go
  - Go Dependency Management
- Scala
- Clojure
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Databases & Data Management
- Heroku Postgres
  - Postgres Basics
  - Postgres Getting Started
  - Postgres Performance
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  - 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

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Security
- App Security
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  - Single Sign-on (SSO)
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  - Infrastructure Networking
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Heroku Enterprise
- Enterprise Accounts
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- Heroku Connect (Salesforce sync)
  - Heroku Connect Administration
  - Heroku Connect Reference
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Patterns & Best Practices

Extending Heroku
- Platform API
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Accounts & Billing

Troubleshooting & Support

Integrating with Salesforce

Default Ruby version for new apps is now 3.1.6

Change effective on 14 June 2024

The default Ruby version for new Ruby applications is 3.1.6. You’ll only get the default if the application does not specify a ruby version.

Heroku Connect now supports Salesforce API v61.0 Node.js 22.3.0 now available