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Heroku Architecture
- Compute (Dynos)
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Developer Tools
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Deployment
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Continuous Delivery & Integration (Heroku Flow)
- Continuous Integration

Language Support
- Node.js
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- Ruby
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  - Working with Ruby
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- Python
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  - Background Jobs in Python
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- Java
  - Java Behavior in Heroku
  - Working with Java
  - Working with Maven
  - Working with Spring Boot
  - Troubleshooting Java Apps
- PHP
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  - Working with PHP
- Go
  - Go Dependency Management
- Scala
- Clojure
- .NET
  - Working with .NET

Databases & Data Management
- Heroku Postgres
  - Postgres Basics
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  - Migrating to Heroku Postgres
- Heroku Key-Value Store
- Apache Kafka on Heroku
- Other Data Stores

AI
- Heroku Inference
  - Heroku Inference Quick Start Guides
  - AI Models
  - Inference Essentials
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- Vector Database
- Model Context Protocol
- Working with AI

Monitoring & Metrics
- Logging

App Performance

Add-ons
- All Add-ons

Collaboration

Security
- App Security
- Identities & Authentication
  - Single Sign-on (SSO)
- Private Spaces
  - Infrastructure Networking
- Compliance

Heroku Enterprise
- Enterprise Accounts
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Patterns & Best Practices

Extending Heroku
- Platform API
- App Webhooks
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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
- Heroku AppLink
  - Getting Started with Heroku AppLink
  - Working wtih Heroku AppLink
  - Heroku AppLink Reference
- Heroku Connect (Salesforce sync)
  - Heroku Connect Administration
  - Heroku Connect Reference
  - Heroku Connect Troubleshooting
- Other Salesforce Integrations

Default Yarn version for Ruby applications using the Webpacker gem now 1.0.2

Change effective on 28 September 2017

If you are deploying a Ruby application with the webpacker gem you will now get yarn version 1.0.2 installed .

If you have specified to use the heroku/nodejs buildpack this change will not affect you.

Platform API Event Resources have been Deprecated Go Language Runtime Metrics now in public beta