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OpenMetadata vs Apache Iceberg
A side-by-side editorial comparison of OpenMetadata and Apache Iceberg — release velocity, themes, recent moves, and the top alternatives to consider.
OpenMetadata vs Apache Iceberg: at a glance
What is OpenMetadata?
MCP servers became first-class governed assets in 1.13.0 — and 2.0 is now in release candidate.
OpenMetadata maintains two lines at once, 1.12.x and 1.13.x, and has just cut a 2.0.0 release candidate on top of them. The 1.13.0 feature release made MCP a first-class service category with service and server entities, execution logs, test-connection support, REST resources and UI pages, added usage analytics broken down by tool and user, and brought SAML SSO to MCP OAuth. Alongside it landed an RDF knowledge graph built on Apache Jena. Everything since has been maintenance on both lines, weighted heavily toward CVE patching.
What is Apache Iceberg?
Iceberg's release cadence is now backports and CVE patches across three live minor lines.
The project is maintaining 1.9.x, 1.10.x and 1.11.x concurrently, and the visible work is overwhelmingly maintenance: dependency bumps, backported fixes, and a steady stream of correctness repairs around nullability, deletes and the REST catalog. 1.10.2 in particular is almost entirely backports plus a CVE fix in a compression dependency.
OpenMetadata vs Apache Iceberg: editorial side-by-side
OpenMetadata
6.3ANALYTICS
MCP servers became first-class governed assets in 1.13.0 — and 2.0 is now in release candidate.
◆ Current state
OpenMetadata maintains two lines at once, 1.12.x and 1.13.x, and has just cut a 2.0.0 release candidate on top of them. The 1.13.0 feature release made MCP a first-class service category with service and server entities, execution logs, test-connection support, REST resources and UI pages, added usage analytics broken down by tool and user, and brought SAML SSO to MCP OAuth. Alongside it landed an RDF knowledge graph built on Apache Jena. Everything since has been maintenance on both lines, weighted heavily toward CVE patching.
◆ Where it's heading
The catalog is extending its governance model to cover AI tooling rather than just data assets — MCP servers get the same entity, connection-testing and usage-analytics treatment that databases and dashboards receive, and the RDF layer gives the metadata graph a standard query surface. Running underneath that is an unusually heavy security cadence: nearly every maintenance release in this window is a list of dependency CVEs across Jackson, Netty, Spring, log4j, handlebars, MLflow and PyArrow, patched in parallel on both maintained lines. The 2.0.0-rc1 tag suggests that dual-line burden is about to become a three-way one.
◆ Prediction
Expect 2.0.0 to move from rc1 through further release candidates while 1.13.x continues absorbing connector and governance fixes, and for CVE-driven patch releases to keep landing on both lines in near-lockstep.
Apache Iceberg
0.0ANALYTICS
Iceberg's release cadence is now backports and CVE patches across three live minor lines.
◆ Current state
The project is maintaining 1.9.x, 1.10.x and 1.11.x concurrently, and the visible work is overwhelmingly maintenance: dependency bumps, backported fixes, and a steady stream of correctness repairs around nullability, deletes and the REST catalog. 1.10.2 in particular is almost entirely backports plus a CVE fix in a compression dependency.
◆ Where it's heading
The feature story lives in the minor releases and the spec, not the patches — Flink 2.0 support, Variant type work reaching Parquet readers, and repeated REST catalog validation fixes point at a format spending its effort on engine breadth and on the REST catalog as the standard access path. The patch stream shows a format mature enough that its hardest problems are now schema-evolution edge cases and cleanup-on-failure semantics.
◆ Prediction
Expect continued parallel maintenance of the 1.10.x and 1.11.x lines with backports dominating, and the next substantive work to land in Variant type coverage and REST catalog behaviour rather than in the core table spec.
Alternatives to OpenMetadata and Apache Iceberg
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either OpenMetadata or Apache Iceberg.
OpenSearch Dashboards
Three releases in a year, all of them about the Vega dependency — the feed shows nothing else.
Apache Kylin
Kylin ships once a year with empty release notes and a native engine nobody is being told about.
Mage
Feature releases every two months in 2024; one bugfix release in the last twelve.
TimescaleDB
Every release in this window is columnstore work — compression is where TimescaleDB is spending
Polars
The streaming engine is stable and the API is being narrowed — Polars is clearing ground for a breaking release
See all OpenMetadata alternatives → · See all Apache Iceberg alternatives →
Recent activity from OpenMetadata and Apache Iceberg
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoOpenMetadataSnowflake foreign-key collisions and governance workflow fixes
- 3d agoOpenMetadata2.0.0 enters release candidate, dev and test only
- 3d agoOpenMetadataMCP tool enhancements, log4j CVE patch, reindexing fixes
- 3d agoOpenMetadataMLflow, PyArrow and server dependency CVE patches
- 23d agoOpenMetadataMCP becomes a first-class service category with usage analytics ⚡
- 27d agoOpenMetadataOpenSearch alias swap and reindex lock fixes
- 2mo agoApache Iceberg1.11.0 opens a new line on Spark 4.0.1
- 2mo agoApache IcebergBackport release fixes delete ordering and a compression CVE
- 7mo agoApache IcebergNullability and REST catalog validation fixes
- 10mo agoApache IcebergFlink 2.0 support and Variant type reaches Parquet
- 1y agoApache IcebergStop retrying object-store 502 and 504 responses
Frequently asked questions
What is the difference between OpenMetadata and Apache Iceberg?
They serve adjacent needs but don't currently overlap on shipped themes. OpenMetadata is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is OpenMetadata better than Apache Iceberg?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. OpenMetadata is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to OpenMetadata?
Top OpenMetadata alternatives in Analytics are ranked by recent ship velocity. Browse the "OpenMetadata alternatives" section above for the current picks, or visit /alternatives/openmetadata for the full list with editorial commentary on each.
What are the best alternatives to Apache Iceberg?
Top Apache Iceberg alternatives in Analytics are ranked by recent ship velocity. Browse the "Apache Iceberg alternatives" section above for the current picks, or visit /alternatives/apache-iceberg for the full list with editorial commentary on each.