Apache Airflow 1.10.15 - 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) - 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) - Update URL for Airflow docs (#13561) - Clarifies version args for installing 1.10 in Docker (#12875)