ECS Executor in apache-airflow-providers-amazon 9.16.0 incompatible with Airflow 3.x - calls removed method command_as_list()

[iamapez]

Apache Airflow version

3.1.1

What happened

The ECS Executor fails immediately on scheduler startup with:

AttributeError: 'TaskInstance' object has no attribute 'command_as_list'

This occurs in /airflow/providers/amazon/aws/executors/ecs/ecs_executor.py line 598 in the try_adopt_task_instances method when the scheduler attempts to adopt orphaned tasks.

What you think should happen instead

The ECS Executor should work with Airflow 3.x. The command_as_list() method was removed as part of the Task SDK refactoring in Airflow 3.0.

How to reproduce

1. Install Airflow 3.1.1
2. Install apache-airflow-providers-amazon==9.16.0
3. Configure AIRFLOW__CORE__EXECUTOR=airflow.providers.amazon.aws.executors.ecs.ecs_executor.AwsEcsExecutor
4. Start the scheduler
5. Scheduler crashes in boot loop with the above error

Operating System

Debian GNU/Linux 12 (in Docker/ECS)

Versions of Apache Airflow Providers

apache-airflow-providers-amazon==9.16.0

Deployment

Amazon (AWS) - ECS

Anything else

I found that PR #48513 (commit 8e8c84f) from April 2025 supposedly fixed this issue for Task SDK support, but this fix is NOT in the 9.16.0 release from October 2025.

I verified this by downloading the 9.16.0 package from PyPI and checking line 598:

pip download apache-airflow-providers-amazon==9.16.0 --no-deps
unzip apache_airflow_providers_amazon-9.16.0-py3-none-any.whl
grep -n "command_as_list" airflow/providers/amazon/aws/executors/ecs/ecs_executor.py
# Output: 598:                        ti.command_as_list(),

The current workaround is to install from main branch:

pip install git+https://github.com/apache/airflow.git@main#subdirectory=providers/amazon

This is blocking production deployments using ECS Executor with Airflow 3.x.

Are you willing to submit PR?

• Yes I am willing to submit a PR (though the fix already exists in main)

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template! If you are willing to raise PR to address this issue please do so, no need to wait for approval.

[dylanschw]

Is this free to work on?