Airflow Task State Store (AIP-103)

Airflow 3.3 ships two key/value stores and a crash-safety mixin for operators that submit external jobs.

task_state_store, asset_state_store, and ResumableJobMixin's crash-safety guarantee require Airflow 3.3+. Check first:

af config version

Below 3.3: task_state_store/asset_state_store are unavailable, and durable=True is a no-op — provider operators ship a pre-3.3 ResumableJobMixin shim that always submits fresh (see Section 5). Tell the user those specific features aren't available yet and link the AIP-103 tracking issue. This does not gate Section 6's Triggerer-vs-mode="reschedule" decision, or the general "green submit ≠ success" anti-pattern — those apply on any Airflow version. On a pre-3.3 DAG, give that guidance in full; only drop the "durable=True adds crash-safety" half of it.

Section 1 — Pick the right primitive