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Heroku Architecture
- Dynos (app containers)
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- Networking & DNS
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Deployment
- Deploying with Git
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Continuous Delivery
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Language Support
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  - Working with Bundler
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  - Background Jobs in Python
  - Working with Django
- Java
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  - Working with Spring Boot
- PHP
- Go
  - Go Dependency Management
- Scala
- Clojure

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

Monitoring & Metrics
- Logging

App Performance

Add-ons
- All Add-ons

Collaboration

Security
- App Security
- Identities & Authentication
- Compliance

Heroku Enterprise
- Private Spaces
  - Infrastructure Networking
- Enterprise Accounts
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- Heroku Connect (Salesforce sync)
  - Heroku Connect Administration
  - Heroku Connect Reference
  - Heroku Connect Troubleshooting
- Single Sign-on (SSO)

Patterns & Best Practices

Extending Heroku
- Platform API
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- 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

SBT 0.12.1 Support

Change effective on 23 October 2012

Scala on Heroku now supports SBT 0.12.1. Update sbt.version in project/build.properties to activate.

Heroku Postgres' Follow feature is now GA JDK 7 and 8 available for Scala and Play 2 Applications