astronomer/astronomer-cosmos astronomer-cosmos-v1.15.1

v1.15.1

on GitHub

1.15.1 (2026-08-04)

Behaviour Changes

These changes adjust observable behaviour of the Kubernetes-based operators and of argument
validation in async execution mode. None of them break the public Cosmos API, but users relying
on the previous behaviour should review before upgrading.

• Kubernetes-based dbt operators no longer override the container image's ENTRYPOINT by
  default: the full dbt command is passed via arguments and any user-supplied cmds is
  preserved. Images whose entrypoint is itself dbt now require an explicit cmds=["dbt"].
  This restores the pre-1.15.0 default. See #2891.
• Passing output-only template fields (compiled_sql, freshness) via operator_args in
  async execution mode now raises CosmosValueError at DAG parse time instead of an opaque
  TypeError. See #2868.

Bug Fixes

• Preserve container ENTRYPOINT by default in Kubernetes-based dbt operators by @pankajkoti in #2891
• Make partial-parse cache reads resilient to NFS ESTALE races by @mungiyo in #2867
• Render env_var() Jinja when deriving ExecutionMode.WATCHER dataset namespace by @pankajastro in #2879
• Avoid deprecated airflow.exceptions.AirflowSkipException import on Airflow 3.1+ by @pankajastro in #2796
• Reject output-only template fields on the async operator_args path by @pankajastro in #2868
• Credit all parent models in ExecutionMode.WATCHER multi-parent test aggregation, so test sensors no longer hang by @hellowithchicken in #2901
• Honour dbt test operator_kwargs under TestBehavior.AFTER_EACH by @tatiana in #2936
• Skip generated dirs when hashing the dbt project folder by @goingforstudying-ctrl in #2942
• Address #2942 review feedback: manifest-mode hashing, additive excluded dirs, hash construction by @pankajastro in #2944
• Honor on_warning_callback passed via operator_args by @tatiana in #2940
• Fix watcher fallback silently dropping --full-refresh overrides by @pankajastro in #2917

Docs

• Document container command and image ENTRYPOINT handling for Kubernetes modes by @pankajkoti in #2906
• Document verified Cosmos/Runtime/dbt Core compatibility by @pankajastro in #2914
• Replace redirecting documentation URLs and raise the link-check timeout by @pankajkoti in #2905
• Reference stable Cosmos 1.11.0 for dbt Fusion instead of the 1.11.0a1 alpha by @pankajastro in #2861
• Clarify callback support under ExecutionMode.WATCHER by @pankajastro in #2884
• Add Airflow 3.3 row to the dbt dependency conflict matrix by @pankajastro in #2886
• Improve privacy policy by @tatiana in #2910
• Remove duplicated sections in contributing.rst by @tatiana in #2859
• Fix incorrect PR/issue references in the CHANGELOG by @tatiana in #2864
• Document retrying models but not tests by @pankajastro in #2835

Others

• Fix flaky source_pruning_dag integration test by seeding the database first by @tatiana in #2927
• Fix CI dependency cache by @tatiana in #2931
• Add dbt-core 1.12 to the test matrix by @pankajastro in #2773
• Add Python 3.14 to the test matrix (Airflow 3.2/3.3, dbt 1.12 only) by @pankajastro in #2903
• Pin Airflow 3.3 requirements and simplify the pre-install script by @pankajkoti in #2881