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Heroku Architecture
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  - Dyno Management
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- Stacks (operating system images)
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- Scala
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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

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Security
- App Security
- Identities & Authentication
  - Single Sign-on (SSO)
- Compliance

Heroku Enterprise
- Private Spaces
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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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Troubleshooting & Support

Integrating with Salesforce

The App API resource's `web_url` now shows HTTPS

Change effective on 23 October 2014

The app resource in the Heroku platform API now lists its web_url as HTTPS instead of HTTP.

Ruby 2.1.4 now available on Heroku Legacy Routing Sunset