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- Dynos (app containers)
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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 Data For Redis
- Apache Kafka on Heroku
- Other Data Stores

Monitoring & Metrics
- Logging

App Performance

Add-ons
- All Add-ons

Collaboration

Security
- App Security
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  - 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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- Building Add-ons
  - Add-on Development Tasks
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- Building CLI Plugins
- Developing Buildpacks
- Dev Center

Accounts & Billing

Troubleshooting & Support

Integrating with Salesforce

Add-on plan changes available right from within Dashboard

Change effective on 04 December 2013

Add-on plan upgrades and downgrades are now possible from within Dashboard. Heroku Postgres still requires following this article.

Show Rakefile errors in Ruby deploys Ruby (MRI) patched to address CVE-2013-4164