Apache Airflow 1.10.15, 2021-03-17

Bug Fixes

• Fix airflow db upgrade to upgrade db as intended (#13267)
• Moved boto3 limitation to snowflake (#13286)
• KubernetesExecutor should accept images from executor_config (#13074)
• Scheduler should acknowledge active runs properly (#13803)
• Bugfix: Unable to import Airflow plugins on Python 3.8 (#12859)
• Include airflow/contrib/executors in the dist package
• Pin Click version for Python 2.7 users
• Ensure all statsd timers use millisecond values. (#10633)
• [kubernetes_generate_dag_yaml] - Fix dag yaml generate function (#13816)
• Fix airflow tasks clear cli command wirh --yes (#14188)
• Fix permission error on non-POSIX filesystem (#13121) (#14383)
• Fixed deprecation message for "variables" command (#14457)
• BugFix: fix the delete_dag function of json_client (#14441)
• Fix merging of secrets and configmaps for KubernetesExecutor (#14090)
• Fix webserver exiting when gunicorn master crashes (#13470)
• Bump ini from 1.3.5 to 1.3.8 in airflow/www_rbac
• Bump datatables.net from 1.10.21 to 1.10.23 in airflow/www_rbac
• Webserver: Sanitize string passed to origin param (#14738)
• Make rbac_app's db.session use the same timezone with @provide_session (#14025)

Improvements

• Adds airflow as viable docker command in official image (#12878)
• StreamLogWriter: Provide (no-op) close method (#10885)
• Add 'airflow variables list' command for 1.10.x transition version (#14462)

Doc only changes

• Update URL for Airflow docs (#13561)
• Clarifies version args for installing 1.10 in Docker (#12875)