# Apache Iceberg vs Delta Lake

| Attribute | Apache Iceberg | Delta Lake |
|---|---|---|
| **Vioscale score** | 62.2 (56% (medium)) | 64.7 (58% (medium)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 1 | 152 |
| adoption.github_stars | 9,176 | 8,960 |
| adoption.package_downloads_weekly | 11,384,061 | 8,577,014 |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | Apache Iceberg is a table format that enables reliable, ACID-compliant SQL operations on big data. It allows multiple query engines—such as Spark, Trino, Flink, Hive, and Impala—to safely read and write the same tables concurrently, bringing traditional database semantics to analytics workloads. | An open-source storage framework enabling lakehouse architecture with support for multiple compute engines including Spark, Flink, Trino, Snowflake, BigQuery, and others. |
| features.capabilities | `{"deployment":"embedded","data_sharing":true,"license_class":"permissive","table_formats":"Iceberg (Parquet, ORC, Avro, Puffin data files)","semi_structured":"first_class","federation_query":true,"streaming_ingest":true,"concurrency_scaling":"automatic"}` | `{"deployment":"self","architecture":"separated","data_sharing":true,"license_class":"permissive","table_formats":"Delta, Iceberg, Hudi","federation_query":true,"streaming_ingest":true}` |
| integrations.count | 20 | 29 |
| integrations.list | `[{"name":"Spark"},{"name":"Trino"},{"name":"Presto"},{"name":"Flink"},{"name":"Hive"},{"name":"Impala"},{"name":"PyArrow"},{"name":"DuckDB"},{"name":"Polars"},{"name":"Pandas"},{"name":"Ray"},{"name":"Datafusion"},{"name":"BigQuery"},{"name":"SQLAlchemy"},{"name":"S3"},{"name":"GCS"},{"name":"Azure Data Lake Storage"},{"name":"Hadoop"},{"name":"Kerberos"},{"name":"Thrift"}]` | `[{"name":"Apache Spark"},{"name":"Apache Flink"},{"name":"Apache Hive"},{"name":"Apache Pulsar"},{"name":"Apache Druid"},{"name":"ClickHouse"},{"name":"Trino"},{"name":"PrestoDB"},{"name":"StarRocks"},{"name":"RisingWave"},{"name":"Dagster"},{"name":"Hopsworks"},{"name":"MLflow"},{"name":"Kafka"},{"name":"AWS Athena"},{"name":"AWS EMR"},{"name":"AWS Glue"},{"name":"Azure Stream Analytics"},{"name":"Google BigQuery"},{"name":"Snowflake"},{"name":"Databricks"},{"name":"AWS Redshift"},{"name":"Microsoft Fabric"},{"name":"Power BI"},{"name":"Starburst"},{"name":"Oracle"},{"name":"Excel"},{"name":"FINOS Legend"},{"name":"Kotosiro"}]` |
| language.primary | Java | Scala |
| license.spdx | Apache-2.0 | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| pricing | `{"type":"open_source","summary":"Open source, no licensing cost","sourceUrl":"https://iceberg.apache.org","retrievedAt":"2026-08-14T08:32:59.428Z"}` | `{"type":"open_source","sourceUrl":"https://delta.io","retrievedAt":"2026-08-14T08:32:59.229Z"}` |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| release.cadence_days | 50 | 50 |
| release.history | `[{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.11.0","date":"2026-05-20T08:47:57Z","type":"stable","version":"apache-iceberg-1.11.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.10.2","date":"2026-05-18T21:58:12Z","type":"stable","version":"apache-iceberg-1.10.2"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.10.1","date":"2025-12-22T22:04:42Z","type":"stable","version":"apache-iceberg-1.10.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.10.0","date":"2025-09-11T15:08:46Z","type":"stable","version":"apache-iceberg-1.10.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.9.2","date":"2025-07-18T13:44:58Z","type":"stable","version":"apache-iceberg-1.9.2"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.9.1","date":"2025-05-28T16:52:05Z","type":"stable","version":"apache-iceberg-1.9.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.9.0","date":"2025-04-28T06:27:16Z","type":"stable","version":"apache-iceberg-1.9.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.7.2","date":"2025-03-19T10:12:37Z","type":"stable","version":"apache-iceberg-1.7.2"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.8.1","date":"2025-02-28T07:52:17Z","type":"stable","version":"apache-iceberg-1.8.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.8.0","date":"2025-02-13T09:13:46Z","type":"stable","version":"apache-iceberg-1.8.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.7.1","date":"2024-12-06T20:01:03Z","type":"stable","version":"apache-iceberg-1.7.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.7.0","date":"2024-11-08T15:12:01Z","type":"stable","version":"apache-iceberg-1.7.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.6.1","date":"2024-08-27T17:47:30Z","type":"stable","version":"apache-iceberg-1.6.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.6.0","date":"2024-07-23T12:06:44Z","type":"stable","version":"apache-iceberg-1.6.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.5.2","date":"2024-05-16T07:50:32Z","type":"stable","version":"apache-iceberg-1.5.2"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.5.1","date":"2024-04-30T12:43:30Z","type":"stable","version":"apache-iceberg-1.5.1"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.5.0","date":"2024-03-11T11:00:15Z","type":"stable","version":"apache-iceberg-1.5.0"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.4.3","date":"2023-12-27T17:15:46Z","type":"stable","version":"apache-iceberg-1.4.3"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.4.2","date":"2023-11-07T16:44:26Z","type":"stable","version":"apache-iceberg-1.4.2"},{"url":"https://github.com/apache/iceberg/releases/tag/apache-iceberg-1.4.1","date":"2023-10-23T11:03:35Z","type":"stable","version":"apache-iceberg-1.4.1"}]` | `[{"url":"https://github.com/delta-io/delta/releases/tag/v4.4.0","date":"2026-08-20T16:52:49Z","type":"stable","version":"v4.4.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.3.3","date":"2026-08-12T21:01:45Z","type":"stable","version":"v3.3.3"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.3.1","date":"2026-07-08T04:59:39Z","type":"stable","version":"v4.3.1"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.3.0","date":"2026-06-18T04:26:28Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.2.0","date":"2026-04-16T05:00:05Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.1.0","date":"2026-02-26T02:42:06Z","type":"stable","version":"v4.1.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.0.1","date":"2026-01-16T00:40:03Z","type":"stable","version":"v4.0.1"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.0.0","date":"2025-06-09T16:22:13Z","type":"stable","version":"v4.0.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.3.2","date":"2025-05-31T00:20:00Z","type":"stable","version":"v3.3.2"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.3.1","date":"2025-05-05T03:21:16Z","type":"stable","version":"v3.3.1"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.3.0","date":"2025-01-06T22:04:57Z","type":"stable","version":"v3.3.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.2.1","date":"2024-09-26T21:00:46Z","type":"stable","version":"v3.2.1"},{"url":"https://github.com/delta-io/delta/releases/tag/v4.0.0rc1","date":"2024-06-13T16:28:01Z","type":"prerelease","version":"v4.0.0rc1"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.2.0","date":"2024-05-09T19:55:28Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.1.0","date":"2024-01-30T22:13:52Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v3.0.0","date":"2023-10-17T23:04:31Z","type":"stable","version":"v3.0.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v2.4.0","date":"2023-05-25T22:10:14Z","type":"stable","version":"v2.4.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v2.3.0","date":"2023-04-05T18:42:33Z","type":"stable","version":"v2.3.0"},{"url":"https://github.com/delta-io/delta/releases/tag/v2.0.2","date":"2023-01-13T22:44:44Z","type":"stable","version":"v2.0.2"},{"url":"https://github.com/delta-io/delta/releases/tag/v2.2.0","date":"2022-12-05T23:01:59Z","type":"stable","version":"v2.2.0"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.scorecard | 7.9 | 6.2 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=apache-iceberg&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=io.delta%3Adelta-standalone_2.12&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Data Warehouse Software)

| Capability | Apache Iceberg | Delta Lake |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Embedded | Self-hosted |
| **Architecture** |  |  |
| Architecture | - | Separated storage/compute |
| Compute model | - | - |
| **Query** |  |  |
| SQL dialect | - | - |
| Federation / lakehouse query-in-place | ✓ | ✓ |
| **Interoperability** |  |  |
| Table-format support | Iceberg (Parquet, ORC, Avro, Puffin data files) | Delta, Iceberg, Hudi |
| **Scale** |  |  |
| Concurrency scaling | Automatic | - |
| **Ingestion** |  |  |
| Streaming ingest | ✓ | ✓ |
| **Data model** |  |  |
| Semi-structured (JSON/VARIANT) | First-class | - |
| **Analytics** |  |  |
| ML / in-DB functions | - | - |
| **Sharing** |  |  |
| Data sharing / marketplace | ✓ | ✓ |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Permissive OSS |

*Source: Vioscale. Generated 2026-09-01T17:18:05.077Z. "-" = undocumented, not absent.*