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Heroku Architecture
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  - Working with Bundler
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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
- Identities & Authentication
  - Single Sign-on (SSO)
- Compliance

Heroku Enterprise
- Private Spaces
  - Infrastructure Networking
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- Enterprise Teams
- 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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  - 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

Heroku Scheduler can specify dyno size

Change effective on 06 June 2013

Heroku Scheduler now allows scheduled tasks to be run with either a 1X or 2X dyno.

herokuapp.com added to Public Suffix List JavaScript support added on Heroku Postgres production tier