# Apache Airflow helm-chart/1.20.0 — Apache Airflow Helm Chart 1.20.0

- Product: Apache Airflow (https://whatsnew.fyi/product/apache-airflow)
- Vendor: Apache Software Foundation
- Date: 2026-03-22
- Version: helm-chart/1.20.0
- Original notes: https://github.com/apache/airflow/releases/tag/helm-chart/1.20.0
- Permalink: https://whatsnew.fyi/product/apache-airflow/releases/helm-chart-1.20.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **removed** — Support for Apache Airflow versions below 2.11.0 has been dropped
- **deprecated** — workers.command is deprecated in favor of workers.celery.command/workers.kubernetes.command
- **deprecated** — workers.securityContexts is deprecated in favor of workers.celery.securityContexts/workers.kubernetes.securityContexts
- **deprecated** — workers.containerLifecycleHooks is deprecated in favor of workers.celery.containerLifecycleHooks/workers.kubernetes.containerLifecycleHooks
- **deprecated** — workers.kerberosSidecar is deprecated in favor of workers.celery.kerberosSidecar/workers.kubernetes.kerberosSidecar
- **deprecated** — workers.kerberosInitContainer is deprecated in favor of workers.celery.kerberosInitContainer/workers.kubernetes.kerberosInitContainer
- **deprecated** — workers.terminationGracePeriodSeconds is deprecated in favor of workers.celery.terminationGracePeriodSeconds/workers.kubernetes.terminationGracePeriodSeconds
- **deprecated** — workers.nodeSelector is deprecated in favor of workers.celery.nodeSelector/workers.kubernetes.nodeSelector
- **deprecated** — workers.podDisruptionBudget is deprecated in favor of workers.celery.podDisruptionBudget
- **deprecated** — workers.keda is deprecated in favor of workers.celery.keda
- **deprecated** — workers.resources is deprecated in favor of workers.celery.resources and workers.kubernetes.resources
- **changed** — Readiness probe will be removed from Git-Sync; set dags.gitSync.recommendedProbeSetting to true to enable feature behavior
- **changed** — Liveness probe behavior for Git-Sync will be changed; set dags.gitSync.recommendedProbeSetting to true to enable feature behavior
- **removed** — Automatic KUBERNETES_ENVIRONMENT_VARIABLES and KUBERNETES_SECRETS prefixes have been removed from container_extra_envs and custom_airflow_environment helper functions
- **changed** — Default Airflow image is updated to 3.1.8
- **added** — Support Helm template expressions in podAnnotations and airflowPodAnnotations values
- **added** — Add minute-level log retention to clean-logs script
- **added** — Add LOG_MAX_SIZE environment variable to log groomer
- **removed** — Remove JWT secrets from triggerer, worker and dag-processor

#### Significant Changes

##### Support for old versions of Apache Airflow <2.11 has been dropped (#61018)

Minimum supported version of Apache Airflow is now 2.11.0. If you want to deploy an
old version of Apache Airflow, please use the last released version of the chart 1.19.0.

##### ``workers`` specific sections have been moved to ``workers.celery`` / ``workers.kubernetes`` sections

Please update your configuration accordingly:
* ``workers.command`` command is now deprecated in favor of ``workers.celery.command``/``workers.kubernetes.command`` (#60067).
* ``workers.securityContexts`` command is now deprecated in favor of ``workers.celery.securityContexts``/``workers.kubernetes.securityContexts`` (#60396).
* ``workers.containerLifecycleHooks`` command is now deprecated in favor of ``workers.celery.containerLifecycleHooks``/``workers.kubernetes.containerLifecycleHooks`` (#61369).
* ``workers.kerberosSidecar`` section is now deprecated in favor of ``workers.celery.kerberosSidecar``/``workers.kubernetes.kerberosSidecar`` (#61881).
* ``workers.kerberosInitContainer`` section is now deprecated in favor of ``workers.celery.kerberosInitContainer``/``workers.kubernetes.kerberosInitContainer`` (#60751).
* ``workers.terminationGracePeriodSeconds`` command is now deprecated in favor of ``workers.celery.terminationGracePeriodSeconds``/``workers.kubernetes.terminationGracePeriodSeconds`` (#61892).
* ``workers.nodeSelector`` command is now deprecated in favor of ``workers.celery.nodeSelector``/``workers.kubernetes.nodeSelector`` (#61957).
* ``workers.podDisruptionBudget`` section is now deprecated in favor of ``workers.celery.podDisruptionBudget``. Please update your configuration accordingly. (#61414)
* ``workers.keda`` section is now deprecated in favor of ``workers.celery.keda``. Please update your configuration accordingly. (#61820)
* ``workers.resources`` section is now deprecated in favor of ``workers.celery.resources`` and ``workers.kubernetes.resources``. Please update your configuration accordingly. (#61890)

The previous configuration options are still working, but are deprecated and will be removed in a future version.

##### As Git-Sync is not service-type object, the readiness probe will be removed. (#62334)

To enable feature behaviour set ``dags.gitSync.recommendedProbeSetting`` to ``true``. Section itself will be removed in future release as to not break setups during upgrades.

As Git-Sync has dedicated liveness service, the liveness probe behaviour will be changed. To enable feature behaviour set ``dags.gitSync.recommendedProbeSetting`` to ``true``.

Please update your configuration accordingly.

##### Automatic env variables removed from ``container_extra_envs`` and ``custom_airflow_environment`` (#60750)

The automatic prefix addition for Kubernetes Executor environment variables and secrets has been removed from both the ``container_extra_envs`` and ``custom_airflow_environment`` helper functions.

**What changed:**

Previously, when you added environment variables to component-specific configurations (e.g., ``.Values.scheduler.env``), the chart automatically created an additional environment variable (to specified in the ``env`` section) with the ``AIRFLOW__KUBERNETES_ENVIRONMENT_VARIABLES__`` prefix for Kubernetes Executor worker pods. After this change, only the variable specified in ``env`` section will be created.
Furthermore, for values specified under ``.Values.secret`` section, the ``AIRFLOW__KUBERNETES_SECRETS__`` prefix is no longer automatically added. Secrets are now passed as-is via ``secretKeyRef`` without the prefixed copy for worker pods.

**Why this change:**

* Prevent unintended exposure of sensitive data like ``client_secret`` information. Previously, due to prefix, it was recognized as internal Airflow configuration leading to unintended exposure in Airflow UI (under Admin -> Configuration), even when ``AIRFLOW__API__EXPOSE_CONFIG`` is set to ``non-sensi

_[Truncated at 4000 characters — full notes: https://github.com/apache/airflow/releases/tag/helm-chart/1.20.0]_