> ## Documentation Index
> Fetch the complete documentation index at: https://astronomer.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Learn Airflow 3

<Info>
  [Apache Airflow®](https://airflow.apache.org/) 3 is here! Use our guides to learn everything you need to know about this new release.
</Info>

Airflow 3 brings highly requested new features that make it easier to use, more secure, and suitable for more use cases. Astronomer is here to help you get the most out of this next generation of Airflow, from upgrading, to implementing features like DAG versioning, backfills, and remote execution, to making sure you adhere to best practices. Read on for comprehensive guides on how to get started.

## New to Apache Airflow® and Astro?

<CardGroup cols={2}>
  <Card title="Get started with Apache Airflow® 3 - Tutorial" icon="fan" iconType="regular" href="/docs/learn/get-started-with-airflow">
    Set up Airflow and run your first DAG in minutes with the Astro IDE.
  </Card>

  <Card title="Start your Astro trial" href="https://www.astronomer.io/dg/signup-airflow-3" icon="stars" iconType="regular">
    Create a managed Airflow 3 Deployment with just a few clicks.
  </Card>
</CardGroup>

## Featured Airflow 3 concepts

<CardGroup cols={3}>
  <Card title="Upgrade Airflow" href="/docs/learn/airflow-upgrade-2-3">
    Upgrade from Airflow 2 to 3.
  </Card>

  <Card title="DAG versioning" href="/docs/learn/airflow-dag-versioning">
    Track versions of your DAG code and maintain your development history in Airflow."
  </Card>

  <Card title="Backfills" href="/docs/learn/rerunning-dags">
    Reprocess historical data from the UI, API, or CLI.
  </Card>

  <Card title="Assets" href="/docs/learn/airflow-datasets">
    Use assets to define data-driven pipelines.
  </Card>

  <Card title="Event-driven scheduling" href="/docs/learn/airflow-event-driven-scheduling">
    Run DAGs as soon as your data is updated.
  </Card>

  <Card title="Remote execution" href="/docs/learn/airflow-executors-explained">
    Learn about remote execution capabilities in Airflow 3.
  </Card>
</CardGroup>