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Heroku Architecture
- Compute (Dynos)
  - Dyno Management
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- Buildpacks

Developer Tools
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Deployment
- Deploying with Git
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Continuous Delivery & Integration (Heroku Flow)
- Continuous Integration

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

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

AI
- Working with AI
- Heroku Inference
  - Heroku Inference Quick Start Guides
  - AI Models
  - Inference API
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- Tool Use
- Vector Database
- AI Integrations

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
- Enterprise Teams

Patterns & Best Practices

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

Python buildpacks updated to pip 25.0.1 and Poetry 2.1.2

Change effective on 08 April 2025

We have updated the package managers used during the build of Python apps as follows:

pip updated from 24.3.1 to 25.0.1 (changelog)
Poetry updated from 2.1.1 to 2.1.2 (changelog)

Heroku’s buildpacks are open source. To subscribe to Python buildpack release notifications or provide feedback, see these repositories on GitHub:

Python classic buildpack (used by Cedar-generation apps)
Python Cloud Native Buildpack (used by Fir-generation apps)

Python 3.13.3, 3.12.10, 3.11.12, 3.10.17 and 3.9.22 are now available Node.js 23.11.0 now available