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## Delta Lake extension
Delta Lake is an open source storage framework that enables building a
Lakehouse architecture with various compute engines. [DeltaLakeInputSource](../../ingestion/input-sources.md#delta-lake-input-source) lets
you ingest data stored in a Delta Lake table into Apache Druid. To use the Delta Lake extension, add the `druid-deltalake-extensions` to the list of loaded extensions.
See [Loading extensions](../../configuration/extensions.md#loading-extensions) for more information.
The Delta input source reads the configured Delta Lake table and extracts all the underlying delta files in the table's latest snapshot.
These Delta Lake files are versioned Parquet files.
## Version support
The Delta Lake extension uses the Delta Kernel introduced in Delta Lake 3.0.0, which is compatible with Apache Spark 3.5.x.
Older versions are unsupported, so consider upgrading to Delta Lake 3.0.x or higher to use this extension.
