What happened at Iceberg Summit 2026 ?

Nearly 500 devs debated V4 metadata, AI guidelines, column updates at SF Marriott. Key wins: alignment on one-file commits, Polaris security RFCs.

What's new with Apache Polaris ?

Graduated TLP, Ranger auth integration, 1.4.0 with multi-cloud federation. Enterprise-ready for Iceberg tables.

When is Arrow's next release?

Arrow-rs 58.2.0 in April, focusing Rust bindings and JDK 17 baseline.

🗄️ Databases & Backend

Iceberg Summit 2026: V4 Metadata Wars Erupt in SF as Polaris Hits TLP Stride

San Francisco's Marriott Marquis buzzed with 500 data engineers debating Iceberg V4's metadata future. Polaris graduates to top-level Apache project, signaling lakehouse maturity.

theAIcatchup Apr 10, 2026 4 min read

Crowd at Iceberg Summit 2026 in San Francisco Marriott Marquis discussing V4 specs

⚡ Key Takeaways

Iceberg V4 nears resolution on metadata slimming for faster commits. 𝕏
Polaris TLP graduation boosts multi-cloud lakehouse federation. 𝕏
AI contribution policies solidify amid growing code-gen adoption. 𝕏

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#Apache Arrow #Apache Iceberg #Apache Iceberg V4 #Apache Polaris #Apache Polaris TLP #Data Lakehouse #Iceberg Summit #Iceberg Summit 2026

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Originally reported by dev.to

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