Dagster has released External Assets, a feature that lets teams model and track data assets managed by external schedulers and orchestrators within Dagster's metadata layer. Without migrating existing orchestration infrastructure, users can define asset specifications declaratively in Dagster and inject events via a REST API, Dagster Sensors, or a Python API. This enables cross-cutting data lineage, observability, alerting, and data quality tracking across the entire data platform — making Dagster a unified control plane even for assets it doesn't orchestrate.
